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Detailed Mineral List:
Abelsonite (TL)
Formula: Ni(C31H32N4)
Type Locality: WOSCO Well, Green River formation, Uintah Co., Utah, USA
Reference: Am Min 63: 9-10 pp 930-937
Localities: Recorded from at least 7 other localities in this region.
Photo: © Thomas Witzke. Abelsonite from Green River formation, Uintah Co., Utah, USA
Abernathyite (TL)
Formula: K2(UO2)2(AsO4)2 · 6H2O
Type Locality: Fuemrol No. 2 mine (Fuemrole mine), Temple Mountain, San Rafael District (San Rafael Swell), Emery Co., Utah, USA
Reference: [Clark, 1993 - "Hey's Mineral Index, 3rd Edition"]
Localities: Recorded from at least 11 other localities in this region.
Photo: © rocks4u.com. Abernathyite from Fuemrol No. 2 mine, Temple Mountain, San Rafael District, Emery Co., Utah, USA
Abhurite
Formula: Sn21Cl16(OH)14O6
Localities: San Jose wreck site, Monroe Co., Florida, USA
Queen Anne's Revenge wreck site, Beaufort, Carteret Co., North Carolina, USA
Acanthite
Formula: Ag2S
Localities: Reported from at least 1084 localities in this region.
Photo: © 2003 by A. Plante. Acanthite from Mascot Mine, Gorham, Coos Co., New Hampshire, USA
Actinolite
Formula: ☐{Ca2}{(Mg,Fe2+)5}(Si8O22)(OH)2
Localities: Reported from at least 971 localities in this region.
Photo: © John Betts. Actinolite from Sears Creek, Wenatchee Ridge, Lake Wenatchee, Chelan Co., Washington, USA
Actinolite var: Smaragdite
Formula: Ca2(Mg,Fe2+)5Si8O22(OH)2
Localities: Chunky Gal Mountain, Clay Co., North Carolina, USA
Franklin Co., North Carolina, USA
Buck Creek Mine (Cullakenee Mine), Buck Creek, Clay Co., North Carolina, USA
Marin Co., California, USA
Corundum Knob, Clay Co., North Carolina, USA
'Actinolite-Tremolite Series'
Localities: Medford, Middlesex Co., Massachusetts, USA
Spring Street Quarry (locality 270), Ben Lomond Mountain area, Ben Lomond Mountain, Santa Cruz Mts, Santa Cruz Co., California, USA
Tupper Rock, Bandon, Coos Co., Oregon, USA
Forest Street construction site, Medford, Middlesex Co., Massachusetts, USA
Photo: © 2005 Peter Cristofono. Actinolite-Tremolite Series from Route 9 road cut, Wellesley, Norfolk Co., Massachusetts, USA
Adamite
Formula: Zn2(AsO4)(OH)
Localities: Reported from at least 50 localities in this region.
Photo: © U.Wagner. Adamite from Gold Hill Mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
Adamite var: Cuprian Adamite
Formula: (Zn,Cu)2AsO4OH
Localities: Reported from at least 17 localities in this region.
Photo: © Yaiba Sakaguchi. Cuprian Adamite from San Rafael Mine, Quartz Mountain camp, Lodi District, Nye Co., Nevada, USA
Adamite var: Manganoan Adamite
Locality: Gold Hill Mine (Western Utah Mine), Gold Hill, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
Photo: © Brent Thorne 2008. Manganoan Adamite from Gold Hill Mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
Adelite
Formula: CaMg(AsO4)(OH)
Localities: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Mercur Mine, Mercur District (Camp Floyd District), Oquirrh Mts, Tooele Co., Utah, USA
Photo: Adelite from Squaw Creek Mine, Taylor Creek Tin District, Sierra Co., New Mexico, USA
Aegirine
Formula: NaFe3+Si2O6
Localities: Reported from at least 211 localities in this region.
Photo: © Saul Krotki 2005. Aegirine from Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Aegirine var: Vanadian Aegirine
Formula: Na(Fe,V)Si2O6
Locality: Lincoln Co., Montana, USA
Aegirine-augite
Formula: (Na,Ca)(Fe3+,Fe2+,Mg,Al)Si2O6
Localities: Reported from at least 20 localities in this region.
Photo: © 2013, JGW. Aegirine-augite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Aenigmatite
Formula: Na2Fe2+5Ti(Si6O18)O2
Localities: Reported from at least 18 localities in this region.
Photo: © Karl Volkman 03/07. Aenigmatite from Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Aerinite
Formula: (Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12]
Locality: Millington Quarry (Morris County Crushed Stone Co. Quarry; Tilcon Quarry), Bernards Township, Somerset Co., New Jersey, USA
'Aeschynite'
Localities: Reported from at least 12 localities in this region.
Aeschynite-(Ce)
Formula: (Ce,Ca,Fe,Th)(Ti,Nb)2(O,OH)6
Localities: Darby - south of, Darby, Ravalli Co., Montana, USA
Henderson Mine, Dailey District (Jones Pass District), Clear Creek Co., Colorado, USA
Webb Mine, Yancey Co., North Carolina, USA
Steel Mountain Stock, Elmore Co., Idaho, USA
Ray Mica Mine (Wray Mine), Hurricane Mountain, Burnsville, Spruce Pine District, Yancey Co., North Carolina, USA (more information)
Aeschynite-(Y)
Formula: (Y,Ca,Fe,Th)(Ti,Nb)2(O,OH)6
Localities: Reported from at least 7 localities in this region.
Photo: © Juan Jimenez 2008. Aeschynite-(Y) from Clora May Mine, Trout Creek Pass pegmatite District, Buena Vista, Chaffee Co., Colorado, USA
Afghanite
Formula: (Na,Ca,K)8(Al6Si6O24)(Cl2,SO4,CO3)3 · 0.5H2O
Locality: Edwards Mine (St. Joe Lead), Edwards, Balmat-Edwards Zinc District, St. Lawrence Co., New York, USA
Afmite
Formula: Al3(OH)4(H2O)3(PO4)(PO3OH) · H2O
Locality: Bachman Mine, Hellertown, Lower Saucon Township, Northampton Co., Pennsylvania, USA
Afwillite
Formula: Ca3(HSiO4)2 · 2H2O
Localities: Commercial quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Riverside Co., California, USA
Pea Ridge Mine, Sullivan, Washington Co., Missouri, USA
Photo: © DM06. Afwillite from Commercial quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Riverside Co., California, USA
Agaite (TL)
Formula: Pb3CuTeO5(OH)2(CO3)
Type Locality: Aga Mine, Otto Mountain, Baker, San Bernardino Co., California, USA
Reference: Kampf, A.R., Mills, S.J., Housley, R.M., Marty, J. (2012) Agaite, IMA 2011-115. CNMNC Newsletter No. 13, June 2012, page 812; Mineralogical Magazine, 76, 807-817.
'Agardite'
Localities: Reported from at least 6 localities in this region.
Photo: © R.D.Green. Agardite from Big 3 mine, Railroad Springs District, Esmeralda Co., Nevada, USA
Agardite-(Ce)
Formula: CeCu6(AsO4)3(OH)6 · 3H2O
Locality: Tin stope, Majuba Hill Mine (Mylar Mine), Antelope District, Pershing Co., Nevada, USA
Photo: © 2004 ROM. Agardite-(Ce) from Majuba Hill Mine, Antelope District, Pershing Co., Nevada, USA
Agardite-(La)
Formula: (La,Ce)Cu6(AsO4)3(OH)6 · 3H2O
Localities: Red Cloud Fluorite mine, Gallinas Mts, Red Cloud District, Lincoln Co., New Mexico, USA
Red Cloud copper mine, Gallinas Mts, Red Cloud District, Lincoln Co., New Mexico, USA
Perovskite Peak (Perovskite Hill), Santa Rita Peak, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © Brent Thorne 2008. Agardite-(La) from Red Cloud Fluorite mine, Gallinas Mts, Red Cloud District, Lincoln Co., New Mexico, USA
Agardite-(Nd)
Formula: NdCu6(AsO4)3(OH)6 · 3H2O
Localities: Big 3 mine, Railroad Springs District, Esmeralda Co., Nevada, USA
Simon Mine (Nevada Mine), Bell District, Mineral Co., Nevada, USA
Imperial Mine (Helen Mine), Railroad Springs District, Esmeralda Co., Nevada, USA
Photo: © Yaiba Sakaguchi. Agardite-(Nd) from Imperial Mine, Railroad Springs District, Esmeralda Co., Nevada, USA
Agardite-(Y)
Formula: (Y,Ca)Cu6(AsO4)2(AsO4,HAsO4)(OH)6 · 3H2O
Localities: Reported from at least 14 localities in this region.
Photo: © DM06. Agardite-(Y) from Bob Montgomery Claim Group, Granite Gap, San Simon District, Hidalgo Co., New Mexico, USA
'Aglaite'
Locality: Barrus farm pegmatite localities (Weeks farm), Goshen, Hampshire Co., Massachusetts, USA
Agrellite
Formula: NaCa2Si4O10F
Localities: Stettin pluton, Marathon Co., Wisconsin, USA
Wausau Plateau, Rib Mountain, Marathon Co., Wisconsin, USA
Aguilarite
Formula: Ag4SeS
Localities: Reported from at least 23 localities in this region.
Photo: © 2004 ROM. Aguilarite from 4th of July Mine, Yankee Fork District, Custer Co., Idaho, USA
'AHF'
Formula: Al16(F,OH)48 · 12-15H2O
Localities: Big Southern Butte, Butte Co., Idaho, USA
Valley of Ten Thousand Smokes, Dillingham Borough, Alaska, USA
Kilauea Volcano, Hawaii Co. (Hawaii Island), Hawaii, USA
Aikinite
Formula: PbCuBiS3
Localities: Reported from at least 55 localities in this region.
Photo: Aikinite from South Hecla Mine, Dromedary Peak, Little Cottonwood Canyon, Little Cottonwood District, Wasatch Mts, Salt Lake Co., Utah, USA
Ajoite (TL)
Formula: (K,Na)Cu7AlSi9O24(OH)6 · 3H2O
Type Locality: New Cornelia Mine (Ajo Mine), Ajo, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA
Habit: Tufts of acicular crystals
Colour: pale aquamarine
Description: Fills interstices of radiating spherulitic crystalline shattuckite.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 316, 319-320; Schaller, W.T. & A.C. Vlisidis (1958), Ajoite, a new hydrous aluminum copper silicate, Am.Min.: 43: 1107-1111; Hutton, C.O. & A.C. Vlisidis (1960), Papagoite, a new copper-bearing mineral from Ajo, AZ, Am.Min.: 45: 599-611; Sun, M.S. (1961), Differential analysis of shattuckite, Am.Min.: 46: 67-77; Newberg, D.W. (1964), X-ray study of shattuckite, Am.Min.: 49: 1234-1239; Thomas, W.J. & R.B. Gibbs (1983), Famous mineral localities: The New Cornelia mine, Ajo, AZ, Min.Rec.: 14: 283-298; Clark, 1993 - "Hey's Mineral Index, 3rd Edition"; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 111.
Localities: Recorded from at least 6 other localities in this region.
Photo: © C.Thomson 2003. Ajoite from New Cornelia Mine, Ajo, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA
Akaganeite
Formula: β-Fe3+O(OH,Cl)
Localities: Reported from at least 11 localities in this region.
Åkermanite
Formula: Ca2Mg(Si2O7)
Localities: Iron Hill (Iron Hill carbonatite complex), White Earth District (Powderhorn District), Gunnison Co., Colorado, USA
Cascade Slide, Cascade Mountain, Keene, Essex Co., New York, USA
Marble Canyon Mine (Texas Agricultural Aggregates Quarry), Apache Peak area, Culberson Co., Texas, USA
Akimotoite
Formula: (Mg,Fe2+)SiO3
Locality: Umbarger meteorite, Randall Co., Texas, USA
Akrochordite
Formula: (Mn2+,Mg)5(AsO4)2(OH)4 · 4H2O
Locality: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Aktashite
Formula: Cu6Hg3As4S12
Localities: Getchell Mine (North Pit; Center pit; South pit), Adam Peak, Potosi District, Osgood Mts, Humboldt Co., Nevada, USA
Goldstrike Mine, Lynn District, Eureka Co., Nevada, USA ? (more information)
Alabandite
Formula: Mn2+S
Localities: Reported from at least 56 localities in this region.
Photo: © JF Carpentier 2007. Alabandite from Lucky Cuss Mine, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Alamosite
Formula: Pb12[Si12O36]
Localities: Reported from at least 7 localities in this region.
Photo: © Stephan Wolfsried. Alamosite from Lucky Cuss Mine, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
'Alaskaite'
Localities: Reported from at least 6 localities in this region.
Albite
Formula: NaAlSi3O8
Localities: Reported from at least 1852 localities in this region.
Photo: © Rob Lavinsky. Albite from Organ District, Organ Mts, Doña Ana Co., New Mexico, USA
Albite var: Albite Moonstone
Localities: Crump's Quarry, Mineral Hill, Elwyn, Middletown Township, Delaware Co., Pennsylvania, USA
Lenni, Middletown Township, Delaware Co., Pennsylvania, USA
Photo: © 2007, JGW. Albite Moonstone from Mineral Hill, Elwyn, Middletown Township, Delaware Co., Pennsylvania, USA
Albite var: Andesine
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Localities: Reported from at least 156 localities in this region.
Photo: © 2006 Peter Cristofono. Andesine from Berry Ledge locality, Cornish, York Co., Maine, USA
Albite var: Cleavelandite
Localities: Reported from at least 314 localities in this region.
Photo: © Rob Lavinsky. Cleavelandite from Little Three Mine, Ramona, Ramona District, San Diego Co., California, USA
Albite var: High Albite
Formula: NaAlSi3O8
Locality: Canyon Diablo meteorite, Meteor Crater and vicinity, Winslow, Coconino Co., Arizona, USA
Albite var: Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Localities: Reported from at least 363 localities in this region.
Photo: © . Oligoclase from Horse Hill locality, Norway, Oxford Co., Maine, USA
Albite var: Oligoclase-Albite
Localities: Reported from at least 12 localities in this region.
Photo: © Van King. Oligoclase-Albite from Nelson Corners roadcut, Rossie, St. Lawrence Co., New York, USA
Albite var: Pericline
Localities: Acushnet Quarry (P. J. Keating Quarry; Tilcon Capaldi Quarry; Warren Brothers Quarry; Blue Stone Quarry; Old Bluestone Quarry), Acushnet, Bristol Co., Massachusetts, USA
Aggregate Industries Quarry (Bayer-Mingolla Quarry; Trimount Quarry), Ashland, Middlesex Co., Massachusetts, USA
Babingtonite locality, Uxbridge, Worcester Co., Massachusetts, USA
Photo: © Collectors Edge. Pericline from Acushnet Quarry, Acushnet, Bristol Co., Massachusetts, USA
Albite var: Peristerite
Localities: Reported from at least 9 localities in this region.
Photo: Peristerite from Beryllonite Locality, Stoneham, Oxford Co., Maine, USA
'Albite-Anorthite Series'
Localities: Reported from at least 1139 localities in this region.
Photo: © 2005 Peter Cristofono. Albite-Anorthite Series from Route 13 area, Lunenburg, Worcester Co., Massachusetts, USA
'Albrittonite'
Formula: CoCl2 · 6H2O
Locality: Oxford Serpentine Quarry (Collins prospect), Oxford, Llano Co., Texas, USA
Aleksite
Formula: PbBi2Te2S2
Localities: Tybo Mine (Treadwell-Yukon Mine; incl. 2 G shaft; Hales shaft), Tybo District, Nye Co., Nevada, USA
Keystone Canyon, Nye Co., Nevada, USA
Photo: Aleksite from Keystone Canyon, Nye Co., Nevada, USA
Alforsite (TL)
Formula: Ba5(PO4)3Cl
Type Locality: Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Reference: Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 314.
Localities: Recorded from at least 3 other localities in this region.
Photo: © Pavel M. Kartashov. Alforsite from Incline Sanbornite deposit, Eagle Peak [1], El Portal, Mariposa Co., California, USA
Algodonite
Formula: (Cu1-xAsx)
Localities: Reported from at least 17 localities in this region.
Photo: © 2002 John H. Betts. Algodonite from Painesdale, Houghton Co., Michigan, USA
Aliettite
Formula: Ca0.2Mg6((Si,Al)8O20)(OH)4 · 4H2O
Locality: Goldstrike Mine, Lynn District, Eureka Co., Nevada, USA
'Alisonite'
Formula: Cu6PbS4
Locality: Daly-Judge Mine, Park City District (Uinta District), Wasatch Mts, Summit Co., Utah, USA
'Alkali Feldspar'
Localities: Dora Bay, Cholmondeley Sound, Prince of Wales Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA
Miller Mountain, Corudas Mts, Hudspeth Co., Texas, USA
Salmon Bay, Prince of Wales Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA
McAllister Prospect (Conroy; Davis Hill Mine; Davis Mountain; Dorr's Hill), Carolina Slate Belt, Randolph Co., North Carolina, USA
Black River Falls, Jackson Co., Wisconsin, USA
Allactite
Formula: Mn2+7(AsO4)2(OH)8
Localities: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Photo: Allactite from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
'Allanite'
Localities: Reported from at least 501 localities in this region.
Photo: © 2002, Keith Wood. Allanite from Martin Marietta Quarry, Hickory, Catawba Co., North Carolina, USA
Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Localities: Reported from at least 160 localities in this region.
Photo: © 2011 Harold Moritz. Allanite-(Ce) from Linkpot cut, Airline Railroad, East Hampton, Middlesex Co., Connecticut, USA
Allanite-(La)
Formula: {CaLa}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Localities: Unnamed Allanite occurrence [1], Ragged Peak, Tuolumne Co., California, USA
Jones Mill Quarry (Martin Marietta Quarry; Highway 51 Quarry; Mid-State Quarry), Magnet Cove, Hot Spring Co., Arkansas, USA
Baringer Hill (Barringer Hill), Bluffton, Llano Co., Texas, USA ? (more information)
Allanite-(Nd)
Formula: {CaNd}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Locality: Kingman Feldspar Mine (Kingman group of claims; Kingman Feldspar Quarry; Kingman Feldspar Quarries), Kingman area, Wallapai District, Cerbat Mts (Cerbat Range), Mohave Co., Arizona, USA
Photo: Allanite-(Nd) from Kingman Feldspar Mine, Kingman area, Wallapai District, Cerbat Mts, Mohave Co., Arizona, USA
Allanite-(Y)
Formula: {CaY}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Localities: Rare Metals Mine (Waldren Mining Company Mine), Aquarius Mts (Aquarius Range; Peacock Range), Mohave Co., Arizona, USA
Mineville, Moriah Township, Mineville District, Essex Co., New York, USA
Fish Creek District, Routt Co., Colorado, USA
Mineville District, Essex Co., New York, USA
Baringer Hill (Barringer Hill), Bluffton, Llano Co., Texas, USA ? (more information)
Allargentum
Formula: (Ag1-xSbx)
Locality: Calliope mine, Paquin District, Ouray Co., Colorado, USA
Alleghanyite (TL)
Formula: Mn2+5(SiO4)2(OH)2
Type Locality: Bald Knob deposit (Primary ore body; Crouse Knob deposit), Bald Knob, Sparta, Alleghany Co., North Carolina, USA
Reference: Rocks & Min.: 60:130-135.
Localities: Recorded from at least 13 other localities in this region.
Photo: Alleghanyite from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
'Allemontite'
Locality: Ophir Mine, Comstock Lode, Virginia City, Comstock District, Storey Co., Nevada, USA
Alloclasite
Formula: Co1-xFexAsS
Localities: Unnamed small prospect, Mayer, Yavapai Co., Arizona, USA
Kibblehouse Quarry, Perkiomenville, Marlborough Township, Montgomery Co., Pennsylvania, USA
Little Chief Mine (Little Chief prospect), Little Chief Peak, Sultan Basin, Sultan District, Snohomish Co., Washington, USA ? (more information)
Nunatak Occurrence (south of Snowcap Mountain), McGrath District, Bethel Borough, Alaska, USA ? (more information)
Allophane
Formula: (Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Localities: Reported from at least 104 localities in this region.
Photo: © Chinellato Matteo. Allophane from Maid of Sunshine Mine, Turquoise District, Dragoon Mts, Cochise Co., Arizona, USA
Allophane var: Allophane-evansite
Locality: Gardner Mine Ridge, Bedford, Lawrence Co., Indiana, USA
Allophane var: Phosphate-Allophane
Locality: Whittier, Swain Co., North Carolina, USA
Alluaudite
Formula: (Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
Localities: Reported from at least 24 localities in this region.
Photo: © 2008 Jesse Crawford. Alluaudite from Crystal Snow Mine, Crystal Mountain Pegmatite District, Larimer Co., Colorado, USA
'Alluaudite-Ferroalluaudite Series'
Locality: Palermo No. 1 Mine (Palermo No. 1 pegmatite), Groton, Grafton Co., New Hampshire, USA
'Alluaudite Group'
Localities: Nancy Quarries, Groton, Grafton Co., New Hampshire, USA
Nancy No. 2 Quarry, Nancy Quarries, Groton, Grafton Co., New Hampshire, USA
'Alluaudite-Na□'
Formula: 4Na4Mn2+4Fe3+8(PO4)12
Localities: Greene pegmatite (Red Monster; Pink Monster mines), Pringle, Custer District, Custer Co., South Dakota, USA
Wright Mica Lode, Custer District, Custer Co., South Dakota, USA
Rainbow No. 4 Mine, Fourmile, Custer District, Custer Co., South Dakota, USA
'Alluaudite-NaNa'
Formula: Na4Na4Mn2+4 Fe3+8(PO4)12
Locality: Townsite mine, Pringle, Custer District, Custer Co., South Dakota, USA
Almandine
Formula: Fe2+3Al2(SiO4)3
Localities: Reported from at least 1139 localities in this region.
Photo: © 2002 John H. Betts. Almandine from Garnet Ledge, Wrangell, Wrangell Island, Wrangell-Petersburg Borough, Alaska, USA
Almandine var: Star Garnet
Locality: Emerald Creek, Latah Co., Idaho, USA
'Almandine-Pyrope Series'
Localities: Peekskill, Westchester Co., New York, USA
Red Mountain pluton, Seldovia, Kachemak Bay, Kenai Peninsula Borough, Alaska, USA
Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Henry W. Coe State Park, Diablo Range, Santa Clara Co., California, USA
Gee Point, Hamilton, Skagit Co., Washington, USA
Photo: Almandine-Pyrope Series from Gee Point, Hamilton, Skagit Co., Washington, USA
'Almandine-Spessartine Series'
Localities: Reported from at least 45 localities in this region.
Photo: © 2006 Peter Cristofono. Almandine-Spessartine Series from Tamminen Quarry, Greenwood, Oxford Co., Maine, USA
Alpersite (TL)
Formula: (Mg,Cu)[SO4] · 7H2O
Type Locality: Big Mike Mine, Tobin and Sonoma Range District, Pershing Co., Nevada, USA
Reference: Peterson, R.C., Hammarstrom, J.M., Seal, R.R., II (2006): Alpersite (Mg,Cu)SO4•7H2O, a new mineral of the melanterite group, and cuprian pentahydrite: their occurrence within mine waste. American Mineralogist 91, 261-269.
Photo: Alpersite from Big Mike Mine, Tobin and Sonoma Range District, Pershing Co., Nevada, USA
Alstonite
Formula: BaCa(CO3)2
Localities: Minerva No. 1 Mine (Ozark-Mahoning No. 1 Mine) Ozark-Mahoning Group, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
John Hay Jr. Well No. 1, Green River Formation, Sweetwater Co., Wyoming, USA
Photo: © Alan Goldstein. Alstonite from Minerva No. 1 Mine Ozark-Mahoning Group, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
Altaite
Formula: PbTe
Localities: Reported from at least 97 localities in this region.
Photo: © Peter Haas. Altaite from Organ District, Organ Mts, Doña Ana Co., New Mexico, USA
'Alum Group'
Formula: XAl(SO4)2 · 12H2O
Localities: Reported from at least 26 localities in this region.
Photo: Alum Group from Alum Gulch, Harshaw District, Patagonia Mts, Santa Cruz Co., Arizona, USA
Aluminite
Formula: Al2(SO4)(OH)4 · 7H2O
Localities: Reported from at least 10 localities in this region.
Aluminoceladonite
Formula: K(Mg,Fe2+)Al(Si4O10)(OH)2
Locality: Keweenaw Point, Keweenaw Co., Michigan, USA
Aluminocopiapite (TL)
Formula: Al2/3Fe3+4(SO4)6(OH)2 · 20H2O
Type Locality: Mosquito Fork, Forty Mile River, Southeast Fairbanks Borough, Alaska, USA
Reference: Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
Localities: Recorded from at least 7 other localities in this region.
Photo: Aluminocopiapite from Champion Mine, White Mountain, Laws, White Mts, Inyo Co., California, USA
'Alumino-magnesio-hornblende'
Formula: ☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Locality: Chunky Gal Mountain, Clay Co., North Carolina, USA
Alum-(K)
Formula: KAl(SO4)2 · 12H2O
Localities: Reported from at least 21 localities in this region.
Photo: © Martins da Pedra. Alum-(K) from Alum mine, Alum District, Esmeralda Co., Nevada, USA
Alum-(Na)
Formula: NaAl(SO4)2 · 12H2O
Localities: North Carolina, USA
Great Smoky Mountains, Swain Co., North Carolina, USA
Sunset Crater (Sunset Peak), San Franciscan volcanic field (San Francisco Peaks; San Francisco Mts), Coconino Co., Arizona, USA
Flux Mine (Goshen Mine), Flux Gulch, Alum Gulch, Harshaw District, Patagonia Mts, Santa Cruz Co., Arizona, USA
Photo: © Rockpick Legend Co.. Alum-(Na) from Wayne Co., Utah, USA
Alumohydrocalcite
Formula: CaAl2(CO3)2(OH)4 · 3H2O
Locality: Gabbs, Gabbs District, Nye Co., Nevada, USA
Alumohydrocalcite var: Chromian Alumohydrocalcite
Localities: East Mount Hamilton area, Mount Hamilton, Diablo Range, Santa Clara Co., California, USA
Paradise Flat, Rooster Comb, Orestimba District, Diablo Range, Stanislaus Co., California, USA
Alunite
Formula: KAl3(SO4)2(OH)6
Localities: Reported from at least 372 localities in this region.
Photo: © Elmar Lackner. Alunite from West side Hassayampa River, Morristown, Vulture District, Vulture Mts, Maricopa Co., Arizona, USA
Alunogen
Formula: Al2(SO4)3 · 17H2O
Localities: Reported from at least 96 localities in this region.
Photo: © 2008, JGW. Alunogen from Ridge Avenue and School Lane Quarries, East Falls, Fairmount Park, Philadelphia, Philadelphia Co., Pennsylvania, USA
Amarantite
Formula: Fe3+2(SO4)2O · 7H2O
Localities: San Juan Co., New Mexico, USA
Broken Hill mine, Hayward, Pennington Co., South Dakota, USA
Unnamed gravel pit, San Juan Co., New Mexico, USA
Santa Maria Mts, Blythe, Riverside Co., California, USA
Blythe, Riverside Co., California, USA
'Amber'
Localities: Reported from at least 37 localities in this region.
Photo: © JBeckert. Amber from Sayreville, Middlesex Co., New Jersey, USA
'Amber var: Ambrosine'
Locality: Charleston, Charleston Co., South Carolina, USA
'Amber var: Jelinite'
Locality: Ellsworth Co., Kansas, USA
Amblygonite
Formula: LiAl(PO4)F
Localities: Reported from at least 94 localities in this region.
Photo: © . Amblygonite from Pala District, San Diego Co., California, USA
Amblygonite var: Hebronite
Locality: Mount Rubellite Quarries, Hebron, Oxford Co., Maine, USA
'Amblygonite-Montebrasite Series'
Localities: Reported from at least 9 localities in this region.
Photo: © Rockpick Legend Co.. Amblygonite-Montebrasite Series from Bob Ingersoll Mine, Keystone, Keystone District, Pennington Co., South Dakota, USA
Amesite (TL)
Formula: Mg2Al(AlSiO5)(OH)4
Type Locality: Chester Emery Mines, Chester, Hampden Co., Massachusetts, USA
Reference: Min Rec (1978) 9:235-242
Localities: Recorded from at least 16 other localities in this region.
Ammineite
Formula: [CuCl2(NH3)2]
Locality: Rowley Mine (Rawley Mine; Reliance Mine; Reliance Copper Mine; Rainbow Mine; Theba Mine; San Carlos patented claim #4524), Theba, Painted Rock District, Painted Rock Mts, Maricopa Co., Arizona, USA
Photo: Ammineite from Rowley Mine, Theba, Painted Rock District, Painted Rock Mts, Maricopa Co., Arizona, USA
'Ammonia-niter' ?
Formula: NH4NO3
Locality: Nicajack Cave (Nicojack Cave), Marion Co., Tennessee, USA
Ammonioalunite (TL)
Formula: (NH4)Al3(SO4)2(OH)6
Type Locality: The Geysers, West Mayacmas District, Mayacmas Mts (Mayacamas Mts), Sonoma Co., California, USA
Colour: grayish white
Description: Discovered and described by Altaner et al (1988) from a single specimen in the Smithsonian Museum (NMNH 145596)
Reference: American Mineralogist (1988): 73: 145-152.; Dunning, G. S. & Cooper, J. F. (1993): History and minerals of The Geysers Sonoma County, California. Mineralogical Record 24 (5): 339-352
Localities: Recorded from at least 3 other localities in this region.
Ammoniojarosite (TL)
Formula: (NH4)Fe3+3(SO4)2(OH)6
Type Locality: Kaibab fault, Kane Co., Utah, USA
Description: Occurs in a black lignite shale.
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 563; American Mineralogist (1927): 12: 424-426.
Localities: Recorded from at least 8 other localities in this region.
Photo: © . Ammoniojarosite from Wamsutter, Sweetwater Co., Wyoming, USA
'Amphibole Asbestos'
Localities: Reported from at least 10 localities in this region.
Amphibole Supergroup
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Localities: Reported from at least 174 localities in this region.
Photo: © 2006 Peter Cristofono. Amphibole Supergroup from Ash Creek, Ricolite District, Grant Co., New Mexico, USA
Amphibole Supergroup var: Byssolite
Localities: Reported from at least 46 localities in this region.
Photo: © Matthew Neuzil. Byssolite from U.S 40 Roadcut, Catoctin Mt, Myersville, Frederick Co., Maryland, USA
Amphibole Supergroup var: Uralite
Localities: Reported from at least 40 localities in this region.
Photo: © Betts. Uralite from Copper Mountain, Prince of Wales Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA
Analcime
Formula: Na2(Al2Si4O12) · 2H2O
Localities: Reported from at least 427 localities in this region.
Photo: © 2003 John H. Betts. Analcime from Lower New Street quarry, Paterson, Passaic Co., New Jersey, USA
Analcime var: Cesian Analcime
Locality: Yellowstone National Park, Park Co., Wyoming, USA
Anandite
Formula: (Ba,K)(Fe2+,Mg)3((Si,Al,Fe)4O10)(S,OH)2
Localities: Esquire No. 7 claim, Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Incline Sanbornite deposit, Eagle Peak [1], El Portal, Mariposa Co., California, USA
Esquire No. 8 claim (Lander's Gillespite locality), Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Photo: © 2007, JGW. Anandite from Esquire No. 7 claim, Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Anapaite
Formula: Ca2Fe2+(PO4)2 · 4H2O
Localities: Palermo No. 1 Mine (Palermo No. 1 pegmatite), Groton, Grafton Co., New Hampshire, USA
Lewis Well, Corcoran, Kings Co., California, USA
MacArthur Mine, Yerington District, Lyon Co., Nevada, USA
Nye Co., Nevada, USA
Photo: © Akhenaton. Anapaite from Hilltop Mine, Organ District, Organ Mts, Doña Ana Co., New Mexico, USA
Anatacamite
Formula: Cu2(OH)3Cl
Localities: Red Cloud Mine, Silver District, Trigo Mts, La Paz Co., Arizona, USA
Rowley Mine (Rawley Mine; Reliance Mine; Reliance Copper Mine; Rainbow Mine; Theba Mine; San Carlos patented claim #4524), Theba, Painted Rock District, Painted Rock Mts, Maricopa Co., Arizona, USA
Photo: Anatacamite from Red Cloud Mine, Silver District, Trigo Mts, La Paz Co., Arizona, USA
Anatase
Formula: TiO2
Localities: Reported from at least 305 localities in this region.
Photo: © Alan Goldstein. Anatase from US highway 27 roadcut, Halls Gap, Lincoln Co., Kentucky, USA
Anatase var: Niobian Anatase
Formula: (Ti,Nb)O2
Locality: Unnamed U occurrence, Hector, Cady Mts, San Bernardino Co., California, USA
'Anauxite'
Localities: Reported from at least 16 localities in this region.
Photo: Anauxite from Phelps Dodge Corporation Well No. 1, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA
'Ancylite'
Localities: Reported from at least 16 localities in this region.
Ancylite-(Ce)
Formula: SrCe(CO3)2(OH) · H2O
Localities: Reported from at least 14 localities in this region.
Photo: © C. Stefano. Ancylite-(Ce) from Jones Mill Quarry, Magnet Cove, Hot Spring Co., Arkansas, USA
Andalusite
Formula: Al2(SiO4)O
Localities: Reported from at least 318 localities in this region.
Photo: © 2006 D. Levesque. Andalusite from Small Point, Phippsburg, Sagadahoc Co., Maine, USA
Andalusite var: Chiastolite
Localities: Reported from at least 56 localities in this region.
Photo: © 2002 John H. Betts. Chiastolite from Lancaster chiastolite localities, Lancaster, Worcester Co., Massachusetts, USA
Andalusite var: Titanian Andalusite
Locality: Unnamed occurrence, Sacaton Mts, Gila River Indian Reservation, Pinal Co., Arizona, USA
Andalusite var: Viridine
Formula: (Al,Mn3+)2SiO4O
Localities: Picuris District, Taos Co., New Mexico, USA
Kiowa Mountain, Rio Arriba Co., New Mexico, USA
Picuris Range, Glenwoody District, Taos Co., New Mexico, USA
Squaw Peak area (Piestewa Peak area), Phoenix Mts, Phoenix, Maricopa Co., Arizona, USA
Photo: © 2007 Peter Cristofono. Viridine from Squaw Peak area, Phoenix Mts, Phoenix, Maricopa Co., Arizona, USA
Andersonite (TL)
Formula: Na2Ca(UO2)(CO3)3 · 6H2O
Type Locality: Hillside Mine (Happy Jack MS 920 claim; Camp MS 919 claim; Seven Stars MS 916 claim), Bozarth Mesa, Bagdad, Eureka District, Yavapai Co., Arizona, USA
Habit: Pseudo-cubic
Colour: Bright yellow-green
Fluorescence: Bright whitish-green
Description: Occurs as an efflorescence on walls of mine workings.
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 236, 239; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 365, 387; Frondel, C.C. (1958), Systematic mineralogy of uranium and thorium, USGS Bull. 1064: 119; Dana 7:II:236 & 238; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 51.
Localities: Recorded from at least 24 other localities in this region.
Photo: © 2001 John H. Betts. Andersonite from Snyder Mine, Cane Creek, San Juan Co., Utah, USA
'Andorite'
Formula: PbAgSb3S6
Localities: Reported from at least 17 localities in this region.
Photo: © 2004 ROM. Andorite from Bear Basin Mines, Bear Basin, North Bend, King Co., Washington, USA
Andradite
Formula: Ca3Fe3+2(SiO4)3
Localities: Reported from at least 346 localities in this region.
Photo: © . Andradite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Andradite var: Demantoid
Localities: Yellow Cat Mine, New Idria, New Idria District, Diablo Range, San Benito Co., California, USA
Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © 2001 John H. Betts. Demantoid from Yellow Cat Mine, New Idria, New Idria District, Diablo Range, San Benito Co., California, USA
Andradite var: Melanite
Localities: Reported from at least 29 localities in this region.
Photo: © 2004 D. Schläfli. Melanite from San Benito Co., California, USA
Andradite var: Topazolite
Localities: Reported from at least 12 localities in this region.
Photo: © JM. Johannet. Topazolite from Yellow Cat Mine, New Idria, New Idria District, Diablo Range, San Benito Co., California, USA
'Andradite-Grossular Series'
Localities: Reported from at least 21 localities in this region.
Photo: © 2007 Peter Cristofono. Andradite-Grossular Series from Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Anglesite
Formula: PbSO4
Localities: Reported from at least 984 localities in this region.
Photo: © Chinellato Matteo. Anglesite from Grand Reef Mine, Laurel Canyon, Grand Reef Mountain, Klondyke, Santa Teresa Mts, Aravaipa District, Graham Co., Arizona, USA
Anglesite var: Argentiferous Anglesite
Locality: Mowry Mine (Patagonia Mine; Enterprise Mine; Phoenix Mine), Mowry Hill, Mowry Wash, Mowry, Patagonia District, Patagonia Mts, Santa Cruz Co., Arizona, USA
Anglesite var: Barytoanglesite
Formula: (Pb,Ba)SO4
Locality: Royal Flush Mine, Garden Spring Canyon, Bingham, Hansonburg District, Socorro Co., New Mexico, USA
Anhydrite
Formula: CaSO4
Localities: Reported from at least 447 localities in this region.
Photo: Anhydrite from Braen Quarry, Haledon, Passaic Co., New Jersey, USA
Anilite
Formula: Cu7S4
Localities: Reported from at least 16 localities in this region.
Photo: © Brent Thorne 2009. Anilite from Champion Mine, Painesdale, Houghton Co., Michigan, USA
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Localities: Reported from at least 796 localities in this region.
Photo: © 2001 John H. Betts. Ankerite from Spruce claim, Goldmyer Hot Springs, King Co., Washington, USA
Ankerite var: Manganoan Ankerite
Localities: Silver Glance Mine (Ramboz deposit; Ramboz vein; Rambo group [in part]; Silver Glance deposit; Racine Mines group; Dynomite Mine), Rescue Canyon, Globe Hills, Globe Hills District, Globe-Miami District, Gila Co., Arizona, USA
Silver Belt Mine (Richmond Patent MS 803 claim; Cabinet Silver Patent MS 1293 claim), Silver Belt-McCabe vein, Galena Gulch area, McCabe, Big Bug District, Bradshaw Mts (Bradshaw Range), Yavapai Co., Arizona, USA
Ankerite var: Nickeliferous Ankerite
Locality: Mount Vernon Mine (Devils Mountain Mine; Pacific Mine), Mount Vernon, Skagit Co., Washington, USA
Annabergite
Formula: Ni3(AsO4)2 · 8H2O
Localities: Reported from at least 46 localities in this region.
Photo: © Brent Thorne. Annabergite from Nickel mine, Bolivia, Cottonwood Canyon, Table Mountain District, Churchill Co., Nevada, USA
Annabergite var: Magnesian Annabergite
Formula: (Ni,Mg)3(AsO4)2 · 8H2O
Locality: Pacific Limestone Products Quarry (Kalkar Quarry), Santa Cruz, Santa Cruz Co., California, USA
Annite (TL)
Formula: KFe2+3(AlSi3O10)(OH)2
Type Locality: Rockport, Essex Co., Massachusetts, USA
Reference: Dana (1868), A System of Mineralogy, 5th edition; Dyar, M. Darby and Burns, Roger G. (1986): Miissbauer spectral study of ferruginous one-layer trioctahedral micas (American Mineralogist, Volume 71, pages 955-965).
Localities: Recorded from at least 171 other localities in this region.
Photo: © 2002 DM. Annite from Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Anorthite
Formula: CaAl2Si2O8
Localities: Reported from at least 68 localities in this region.
Photo: Anorthite from Nevada City District, Nevada Co., California, USA
Anorthite var: Bytownite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Localities: Reported from at least 35 localities in this region.
Anorthite var: Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Localities: Reported from at least 179 localities in this region.
Photo: © . Labradorite from Lake Erie beach, Saybrook township, Ashtabula Co., Ohio, USA
'Anorthoclase'
Formula: (Na,K)AlSi3O8
Localities: Reported from at least 47 localities in this region.
Photo: © 2003 DM. Anorthoclase from Wind Mountain, Cornudas Mts, Otero Co., New Mexico, USA
Anorthominasragrite (TL)
Formula: (V4+O)(SO4) · 5H2O
Type Locality: North Mesa Mine group, San Rafael District (San Rafael Swell), Emery Co., Utah, USA
Reference: Lapis 28(12), 46 (2003)
Localities: Recorded from at least 1 other locality in this region.
Photo: © Brent Thorne. Anorthominasragrite from North Mesa No. 5, North Mesa Mine group, Temple Mountain, San Rafael District, Emery Co., Utah, USA
Ansermetite
Formula: Mn2+(V2O6) · 4H2O
Localities: Hale Creek Mine, Mad River Rock, Coastal Range, Trinity Co., California, USA
Little Eva Mine, Yellow Cat District (W. part of Thompsons District), Grand Co., Utah, USA
Vanadium Queen Mine, La Sal Creek Canyon, La Sal District (Paradox Valley District), San Juan Co., Utah, USA
Photo: © Brent Thorne 2011. Ansermetite from Little Eva Mine, Yellow Cat District, Grand Co., Utah, USA
Antarcticite
Formula: CaCl2 · 6H2O
Localities: Bristol Dry Lake (Bristol Playa), Amboy, San Bernardino Co., California, USA
National Chloride Company salt evaporator, Bristol Dry Lake (Bristol Playa), Amboy, San Bernardino Co., California, USA
Photo: © Marek Patúš. Antarcticite from Bristol Dry Lake, Amboy, San Bernardino Co., California, USA
Anthonyite (TL)
Formula: Cu(OH,Cl)2 · 3H2O
Type Locality: Centennial Mine, Centennial, Houghton Co., Michigan, USA
Reference: Williams, S.A. (1963): Anthonyite and calumetite, two new minerals from the Michigan Copper District. American Mineralogist. 48, 614-619; Rocks & Min.:58:109.
Localities: Recorded from at least 2 other localities in this region.
Anthophyllite
Formula: ☐{Mg2}{Mg5}(Si8O22)(OH)2
Localities: Reported from at least 334 localities in this region.
Photo: © 2007 Peter Cristofono. Anthophyllite from Carlton Quarry, Chester, Windsor Co., Vermont, USA
Antigorite
Formula: Mg3(Si2O5)(OH)4
Localities: Reported from at least 194 localities in this region.
Photo: © 2002, Keith Wood. Antigorite from Green Mountain Mine, Day Book, Yancey Co., North Carolina, USA
Antigorite var: Bowenite
Localities: Reported from at least 10 localities in this region.
Photo: © Michael W. Kieron. Bowenite from Conklin Quarry, Lime Rock, Lincoln, Providence Co., Rhode Island, USA
Antigorite var: Jenkinsite
Formula: (Mg,Fe2+)3(Si2O5)(OH)4
Locality: O'Neil Mine (Nail Mine), Lake Mombasha, Town of Monroe, Orange Co., New York, USA
Antigorite var: Picrolite
Localities: Reported from at least 22 localities in this region.
Photo: © M.Heintzelman. Picrolite from Cedar Hill Quarry, Fulton Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA
Antigorite var: Vorhauserite
Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Photo: © 2008, JGW. Vorhauserite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Antigorite var: Williamsite
Localities: Reported from at least 8 localities in this region.
Photo: © M.Heintzelman. Williamsite from Line pit, Fulton Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA
Antimony
Formula: Sb
Localities: Reported from at least 37 localities in this region.
Photo: © Rob Lavinsky . Antimony from Tom Moore Mine, Erskine Creek deposits, Erskine Creek, Bodfish, Erskine Creek District, Kern Co., California, USA
'Antiperthite'
Localities: Mount Scott granite, Wichita Mts, Comanche Co., Oklahoma, USA
Harder Farm, Hammond, St. Lawrence Co., New York, USA
Concord Intrusive complex, Concord, Cabarrus Co., North Carolina, USA
Mitchell Co., North Carolina, USA
'Antitaenite'
Formula: Fe3Ni
Locality: Estherville meteorite, Emmet Co., Iowa, USA
Antlerite (TL)
Formula: Cu3(SO4)(OH)4
Type Locality: Antler Mine (Antler Gold Mine; Spuyten Duyvel Mine), Arrastra Mt., Hualapai District, Hualapai (Hualpai) Mts, Mohave Co., Arizona, USA
Colour: Pastel green, dark green
Description: As soft green lumps.
Reference: Hillibrand, W.F. (1889a); Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 545.
Localities: Recorded from at least 67 other localities in this region.
Photo: © D. Schläfli. Antlerite from Jomac Mine, White Canyon, White Canyon District, San Juan Co., Utah, USA
Apachite (TL)
Formula: Cu9Si10O29 · 11H2O
Type Locality: Christmas Mine (Red Bird shafts; Inspiration Mine; Hackberry shafts), Christmas, Christmas area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA
Habit: Fibrous; blades
Colour: Blue
Description: Occurs as minute, blue matted fibers or blades; fills fractures; pseudomorphic after grossular and diopside in some areas. Found in an ill defined structure that cuts tactites.
Reference: Cesbron, F.P. & S.A. Williams (1980), Apachite and gilalite, two new copper silicates from Christmas, AZ, Min.Mag.: 43: 639-641; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 116, 428.
Localities: Recorded from at least 1 other locality in this region.
Photo: Apachite from Christmas open pit, Christmas Mine, Christmas, Christmas area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA
'Apatite'
Localities: Reported from at least 1510 localities in this region.
Photo: © Saul Krotki 2006. Apatite from Silver Coin Mine, Valmy, Iron Point District, Humboldt Co., Nevada, USA
'Apatite var: Apatized Wood'
Locality: Head of Escarpado Canyon, Cima Hill, Escarpado Canyon, Diablo Range, Fresno Co., California, USA
'Apatite var: Carbonate-rich Apatite'
Localities: Reported from at least 12 localities in this region.
Photo: © 2008 Jesse Crawford. Carbonate-rich Apatite from Palermo No. 1 Mine, Groton, Grafton Co., New Hampshire, USA
'Apatite var: Collophane'
Localities: Reported from at least 98 localities in this region.
Photo: © 2010, JGW. Collophane from Bonny Lake Mine, Land Pebble Phosphate District, Polk Co., Florida, USA
'Apatite var: Coprolite'
Locality: Sedimentary occurrences, Salt Lake City, Salt Lake Co., Utah, USA
'Apatite var: Eupyrchroite'
Locality: Crown Point Township, Essex Co., New York, USA
'Apatite var: Phosphorite'
Localities: Reported from at least 34 localities in this region.
'Apatite Supergroup'
Formula: A5(XO4)3Zq
Locality: Eagle Eye Mine, Moore Mine group, New Water District, New Water Mts, La Paz Co., Arizona, USA
Photo: © 2011, JGW. Apatite Supergroup from Eagle Eye Mine, Moore Mine group, New Water District, New Water Mts, La Paz Co., Arizona, USA
'Aphrosiderite'
Formula: (Fe,Mg,Al)6(Si,Al)4O10(OH)8
Localities: Marquette Co., Michigan, USA
Gogebic Co., Michigan, USA
Iron Co., Michigan, USA
Michigamme, Marquette iron range, Marquette Co., Michigan, USA
Photo: © Rob Lavinsky. Aphrosiderite from Michigamme, Marquette iron range, Marquette Co., Michigan, USA
Aphthitalite
Formula: (K,Na)3Na(SO4)2
Localities: Reported from at least 9 localities in this region.
Photo: © . Aphthitalite from Searles Lake, San Bernardino Co., California, USA
Apjohnite
Formula: Mn2+Al2(SO4)4 · 22H2O
Localities: Reported from at least 10 localities in this region.
Photo: © Antonio Borrelli. Apjohnite from Alum Cave Bluff, Great Smoky Mountains National Park, Sevier Co., Tennessee, USA
Aplowite
Formula: (Co,Mn,Ni)SO4 · 4H2O
Locality: Nabesna Mine, Chisana District, Valdez-Cordova Borough, Alaska, USA
'Apophyllite'
Localities: Reported from at least 180 localities in this region.
Photo: © . Apophyllite from Prospect Park Quarry, Prospect Park, Passaic Co., New Jersey, USA
'Aquacreptite'
Locality: Hitner's Marble Quarry (Hitner's Quarry), Whitemarsh Township, Montgomery Co., Pennsylvania, USA
'Aquacreptite (of Shepard)'
Formula: Mg4Fe2Si6O19 · 8H2O with some Al2O3, or near
Localities: West Chester, Westtown Township, Chester Co., Pennsylvania, USA
Strode's Mill, East Bradford Township, Chester Co., Pennsylvania, USA
Overbrook, Hestonville, Philadelphia Co., Pennsylvania, USA
Photo: © 2010, JGW. Aquacreptite (of Shepard) from Strode's Mill, East Bradford Township, Chester Co., Pennsylvania, USA
Aragonite
Formula: CaCO3
Localities: Reported from at least 648 localities in this region.
Photo: © S.M. Whittemore. Aragonite from Route 101 road cuts, Raymond, Rockingham Co., New Hampshire, USA
Aragonite var: Aragonite Satin Spar
Locality: Crystal Lake Cave (Marcus Cave; Rice's Cave; Linden's Cave), Dubuque Co., Iowa, USA
Aragonite var: Flos Ferri
Localities: Reported from at least 9 localities in this region.
Photo: © John Sobolewski. Flos Ferri from Ajax Mine, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Aragonite var: Plumboan Aragonite
Localities: Red Bird Mine, Lovelock, Antelope District, Pershing Co., Nevada, USA
Evelyn Mine, Leadville District, Lake Co., Colorado, USA
Austinville-Ivanhoe Mine (Austinville Mine; Austinville-Ivanhoe; Ivanhoe Shaft; Van Mater Shaft; Wythe Union Lead Mine), Austinville-Ivanhoe District, New River-Cripple Creek Region, Wythe Co., Virginia, USA
Aragonite var: Strontian Aragonite
Formula: (Ca,Sr)CO3
Locality: Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
Aragonite var: Tarnowitzite
Locality: Red Bird Mine, Lovelock, Antelope District, Pershing Co., Nevada, USA
Aragonite var: Zincian Aragonite
Formula: (Ca,Zn)CO3
Localities: Wolftone Mine, Carbonate Hill, Leadville, Leadville District, Lake Co., Colorado, USA
Maid of Erin (Silver Pick), Tomichi District, Gunnison Co., Colorado, USA
'Aragotite' (TL)
Formula: Hydrocarbon
Type Locality: New Almaden Mine (New Almaden Mines), Almaden Quicksilver County Park, New Almaden, New Almaden District, Santa Cruz Mts, Santa Clara Co., California, USA
Description: Impregnates siliceous dolomite.
Reference: Durand, F.E. (1873), Description of a new mineral from the New Almaden mine: California Academy of Science Proceedings: 4: 218; Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 289; Hanks, Henry Garber (1905), Notes on “aragotite,” a rare California mineral: Royal Micr. Soc. Jour., 1905: 673-676; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 83.
Localities: Recorded from at least 3 other localities in this region.
Aramayoite
Formula: Ag(Sb,Bi)S2
Localities: Flathead Mine (Hog Heaven Project), Kofford Ridge, Hog Heaven District (Flathead District), Flathead Co., Montana, USA
Owhat Prospect (Cobalt Creek), Aniak District, Bethel Borough, Alaska, USA
Photo: © 2008 Jesse Crawford. Aramayoite from Flathead Mine, Kofford Ridge, Hog Heaven District, Flathead Co., Montana, USA
Aravaipaite (TL)
Formula: Pb3F3[AlF6] · H2O
Type Locality: Grand Reef Mine (Aravaipa Mine; Lead Jewel; Joe Rubal Mine; Vivian Mine; Calistoga Mining & Development Co. Mine; Bringham Silver and Lead Mine), Laurel Canyon, Grand Reef Mountain, Klondyke, Santa Teresa Mts, Aravaipa District, Graham Co., Arizona, USA
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 118; Kampf, A.R., et al (1989), Grandreefite, pseudograndreefite, laurelite, and aravaipaite: Four new minerals from the Grandreef mine, Graham Co., AZ, Am.Min.: 74: 927-933; Min.Rec.: 27: 297.
Photo: © Thomas Witzke. Aravaipaite from Grand Reef Mine, Laurel Canyon, Grand Reef Mountain, Klondyke, Santa Teresa Mts, Aravaipa District, Graham Co., Arizona, USA
Arcanite (TL)
Formula: K2SO4
Type Locality: Santa Ana Mine, Trabuco Canyon, Trabuco Canyon [town], Santa Ana Mts, Orange Co., California, USA
Habit: Pseudo-hexagonal due to twinning.
Description: Found as yellow crystals in a pine railroad tie in Tunnel #1.
Reference: Eakle (1908) Bull. Dept. of Geology, Univ. of California: 5: 232. Frondel, C. (1950) Amer. Min.: 35: 596. Palache et al (1951) Dana's Sys. Min., 7th. ed.: 400.
Localities: Recorded from at least 2 other localities in this region.
Photo: © 2008, JGW. Arcanite from Santa Ana Mine, Trabuco Canyon, Trabuco Canyon [town], Santa Ana Mts, Orange Co., California, USA
Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
Localities: Reported from at least 52 localities in this region.
Photo: © S.M. Whittemore. Arfvedsonite from Hurricane Mountain localities, North Conway, Conway, Carroll Co., New Hampshire, USA
'Argentiferous Gold'
Locality: Alamo gold placer (Oro Blanco placers; Alamo Mine), Alamo Gulch, Ruby, Oro Blanco District (Ruby District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
'Argentiferous Wad'
Locality: Power Mine (Power claim; Anozira Mine), Hartford District (Huachuca Mountains District), Huachuca Mts, Cochise Co., Arizona, USA
Argentojarosite (TL)
Formula: AgFe3+3(SO4)2(OH)6
Type Locality: Tintic Standard Mine (Tintic Standard Mines 2 & 3), East Tintic District, East Tintic Mts, Utah Co., Utah, USA
Reference: Washington Academy of Sciences (1923): 13: 233; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II:: 480, 565, 634.; USGS Prof Paper 1024
Localities: Recorded from at least 35 other localities in this region.
Photo: © Rockpick Legend Co.. Argentojarosite from Tintic Standard Mine, East Tintic District, East Tintic Mts, Utah Co., Utah, USA
Argentopentlandite
Formula: Ag(Fe,Ni)8S8
Locality: Silver City, Ontonagon Co., Michigan, USA
Photo: © 2008, JGW. Argentopentlandite from Silver City, Ontonagon Co., Michigan, USA
Argentopyrite
Formula: AgFe2S3
Localities: Slate Creek District, Custer Co., Idaho, USA
Black Creek Mine, Iditarod District, Yukon-Koyukuk Borough, Alaska, USA
Begola Mine, Ouray District, San Juan Mts, Ouray Co., Colorado, USA
Argentotennantite
Formula: Ag6[Cu4(Fe,Zn)2]As4S13
Locality: Bessie G Mine, La Plata District (California District), La Plata Co., Colorado, USA
Argyrodite
Formula: Ag8GeS6
Localities: Iron Clad Mine, Expectation Mountain, Rico District (Pioneer District), Dolores Co., Colorado, USA
Vipont Mine, Ashbrook District, Grouse Creek Mts, Box Elder Co., Utah, USA
Kantishna Hills lode deposits, Kantishna Hills District, Denali NP and Preserve, Denali Borough, Alaska, USA
Greens Creek (Big Sore Mine), Admiralty District, Juneau Borough, Alaska, USA
Tonopah District, Nye Co., Nevada, USA ? (more information)
Aristarainite
Formula: Na2MgB12O20 · 8H2O
Localities: South Meridian claim, Twenty Mule Team Canyon, Furnace Creek District (Furnace Creek Borate District; Death Valley Area Borate Deposits; Ryan area), Inyo Co., California, USA
Eagle Borax Spring, Death Valley, Inyo Co., California, USA
'Arizonite (of Hanks)'
Locality: Sumner Mine, Hassayampa District, Bradshaw Mts (Bradshaw Range), Yavapai Co., Arizona, USA
'Arizonite (of Palmer)'
Locality: A.G. Alm claim, Hackberry, Hackberry District, Aquarius Mts (Aquarius Range; Peacock Range), Mohave Co., Arizona, USA
Armalcolite
Formula: (Mg,Fe2+)Ti2O5
Localities: Smoky Butte (Smoky Butte Lamproite), Garfield Co., Montana, USA
Leucite Hills District, Sweetwater Co., Wyoming, USA
Pine Canyon, Piute Co., Utah, USA
Knippa Quarry (Whites mines; Texas Traprock quarries; Traprock Hill), Knippa, Uvalde Co., Texas, USA ? (more information)
Photo: © Tony Peterson. Armalcolite from Smoky Butte, Garfield Co., Montana, USA
Armenite
Formula: BaCa2Al6Si9O30 · 2H2O
Locality: North Bend, King Co., Washington, USA
Arrojadite-(BaFe)
Formula: {Ba◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
Locality: Big Chief Mine (Johnson pegmatite), Glendale, Keystone District, Pennington Co., South Dakota, USA
Arrojadite-(KFe) (TL)
Formula: {KNa}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
Type Locality: Nickel Plate Mine, Keystone, Keystone District, Pennington Co., South Dakota, USA
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 680, 687; Mineralogical Record: 17: 300.
Localities: Recorded from at least 9 other localities in this region.
Photo: © 2007 Peter Cristofono. Arrojadite-(KFe) from Palermo No. 2 mine, Groton, Grafton Co., New Hampshire, USA
Arsenbrackebuschite
Formula: Pb2Fe3+(AsO4)2(OH)
Localities: Mohawk Mine (Clark Station Mine; Pactolus Mine; Wilshire prospect), Mohawk Hill, Pactolus, Clark Mountain District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA
Hornet Mine, Eureka District, Grant Co., New Mexico, USA
Black Pine Mine (Combination Mine; Black Pine tailings; Black Pine dump), Black Pine Ridge, John Long Mts, Philipsburg District (Flint Creek District), Granite Co., Montana, USA
Arsendescloizite
Formula: PbZn(AsO4)(OH)
Localities: Red Bird Mine, Lovelock, Antelope District, Pershing Co., Nevada, USA
Scratch Awl Mine (Scratch All Mine; Silver Prince; Cliff; Salmon; Blackmail Mine), Philipsburg District (Flint Creek District), Granite Co., Montana, USA
Cleveland Mine (Santa Rita Mine), Adams Mountain, Deer Trail & Cedar Canyon Districts, Huckleberry Range, Stevens Co., Washington, USA
Tonopah-Belmont Mine (East Vulture Mine; Belmont-McNeil Mine; Economy Mining Co. Mine), Belmont Mountain, Tonopah, Osborn District, Big Horn Mts, Maricopa Co., Arizona, USA
Silver Coin Mine, Valmy, Iron Point District, Humboldt Co., Nevada, USA ? (more information)
Photo: © Rafa Muñoz Alvarado. Arsendescloizite from C and B Mine, Christmas, Christmas area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA
Arsenic
Formula: As
Localities: Reported from at least 47 localities in this region.
Photo: © Don Volkman 11/07. Arsenic from Unspecified railroad cuts, Trent, Lane Co., Oregon, USA
Arseniosiderite
Formula: Ca2Fe3+3(AsO4)3O2 · 3H2O
Localities: Reported from at least 34 localities in this region.
Photo: © Brent Thorne. Arseniosiderite from Gold Hill Mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
'Arsenobismite'
Locality: Mammoth Mine (Mammoth shaft; Mammoth hoist and adit), Mammoth, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Arsenocrandallite
Formula: CaAl3(AsO4)2(OH)5 · H2O
Locality: Centennial Eureka Mine (Blue Rock), Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Photo: © 2007, JGW. Arsenocrandallite from Centennial Eureka Mine, Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Arsenogorceixite
Formula: BaAl3(AsO4)2(OH)5 · H2O
Locality: Carlin District, Elko Co., Nevada, USA
Arsenogoyazite
Formula: SrAl3(AsO4)2(OH)5 · H2O
Localities: Centennial Eureka Mine (Blue Rock), Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Bob Montgomery Claim Group, Granite Gap, San Simon District, Hidalgo Co., New Mexico, USA
Mammoth Mine (Mammoth shaft; Mammoth hoist and adit), Mammoth, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Photo: © Brent Thorne 2011. Arsenogoyazite from Mammoth Mine, Mammoth, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Arsenolamprite
Formula: As
Locality: Screamer deposit, Goldstrike Mine, Lynn District, Eureka Co., Nevada, USA
Arsenolite
Formula: As2O3
Localities: Reported from at least 38 localities in this region.
Photo: © Paul Bongaerts. Arsenolite from Manhattan, Manhattan District, Nye Co., Nevada, USA
Arsenopalladinite
Formula: Pd8(As,Sb)3
Localities: Stillwater Complex, Stillwater Co., Montana, USA
Minneapolis adit, J-M Reef (Howland Reef), Stillwater Complex, Stillwater Co., Montana, USA
West Nottingham Township, State Line Chromite District, Chester Co., Pennsylvania, USA
Stillwater Mine, Nye, Stillwater Co., Montana, USA
Arsenopyrite
Formula: FeAsS
Localities: Reported from at least 2108 localities in this region.
Photo: © 2002, Keith Wood. Arsenopyrite from LCA Mine, Bessemer City, Gaston Co., North Carolina, USA
Arsenopyrite var: Danaite
Formula: (Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
Localities: Franconia, Grafton Co., New Hampshire, USA
Unnamed Cu-Au-Zn-As occurrence, Meadow Lake, Meadow Lake District, Nevada Co., California, USA
Hauselt prospect (Hauselt patent; Hauselt Mine), Sheep Ranch, Esmeralda District (Murphy District; Sperry District), Calaveras Co., California, USA
Josephine Mine (Pine Tree Mine; Pine Tree Josephine Mine; Pine Tree and Josephine Mine), Pacific Mining Co. group, Bagby, Bagby-Mariposa-Mount Bullion-Whitlock District, Mother Lode Belt, Mariposa Co., California, USA
Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex Co., Connecticut, USA
'Arsenosulvanite'
Formula: Cu3(As,V)S4
Localities: Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Campbell Mine (Campbell shaft), Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Geis Mine (Red Metal Claim group; Gies Mine; Elk Peak project; Bertha claim group), Cone Butte Sub-District, Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District), Fergus Co., Montana, USA
Arsentsumebite
Formula: Pb2Cu(AsO4)(SO4)(OH)
Localities: Reported from at least 8 localities in this region.
Photo: Arsentsumebite from Silver Coin Mine, Valmy, Iron Point District, Humboldt Co., Nevada, USA
Arsenuranylite
Formula: Ca(UO2)4(AsO4)2(OH)4 · 6H2O
Locality: Rapid River bend Occurrence, Sheenjek District, Yukon-Koyukuk Borough, Alaska, USA
Arthurite
Formula: CuFe3+2(AsO4,PO4,SO4)2(OH,O)2 · 4H2O
Localities: Reported from at least 7 localities in this region.
Photo: © 2004 ROM & Krotki. Arthurite from Majuba Hill Mine, Antelope District, Pershing Co., Nevada, USA
Artinite
Formula: Mg2(CO3)(OH)2 · 3H2O
Localities: Reported from at least 19 localities in this region.
Photo: © Bert Hendriksen. Artinite from Artinite pit, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Artroeite (TL)
Formula: Pb[AlF3(OH)2]
Type Locality: Grand Reef Mine (Aravaipa Mine; Lead Jewel; Joe Rubal Mine; Vivian Mine; Calistoga Mining & Development Co. Mine; Bringham Silver and Lead Mine), Laurel Canyon, Grand Reef Mountain, Klondyke, Santa Teresa Mts, Aravaipa District, Graham Co., Arizona, USA
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 120-121; Kampf, A.R. & E.E. Foord (1995), Artroeite, PbAlF3(OH)2, a new mineral from the Grand Reef mine, Graham Co., AZ: Description and crystal structure, Am.Min.: 80: 179-183; Min.Rec.: 27:293-300.
Artsmithite (TL)
Formula: (Hg+2)2Al(PO4)1.74(OH)1.78
Type Locality: Funderburk prospect, Pike Co., Arkansas, USA
Reference: Roberts, A.C. et al (2003), The Canadian Mineralogist: 41(3): 721-725.
Photo: © 2007, JGW. Artsmithite from Funderburk prospect, Pike Co., Arkansas, USA
'Asbestos'
Localities: Reported from at least 250 localities in this region.
Photo: Asbestos from Presque Isle Park, Marquette, Marquette iron range, Marquette Co., Michigan, USA
'Asbestos var: Mountain Leather'
Localities: Reported from at least 24 localities in this region.
Photo: © AsbestosMinerals.com. Mountain Leather from New Brunswick, Middlesex Co., New Jersey, USA
Asbolane
Formula: (Ni,Co)2-xMn4+(O,OH)4 · nH2O
Localities: Reported from at least 10 localities in this region.
Photo: © 2008, JGW. Asbolane from Jomac Mine, White Canyon, White Canyon District, San Juan Co., Utah, USA
Aschamalmite
Formula: Pb6Bi2S9
Locality: Granite Gap, San Simon District, Peloncillo Mts, Hidalgo Co., New Mexico, USA
Ashburtonite
Formula: Pb4Cu4(Si4O12)(HCO3)4(OH)3Cl · H2O
Localities: Tonopah-Belmont Mine (East Vulture Mine; Belmont-McNeil Mine; Economy Mining Co. Mine), Belmont Mountain, Tonopah, Osborn District, Big Horn Mts, Maricopa Co., Arizona, USA
Rowley Mine (Rawley Mine; Reliance Mine; Reliance Copper Mine; Rainbow Mine; Theba Mine; San Carlos patented claim #4524), Theba, Painted Rock District, Painted Rock Mts, Maricopa Co., Arizona, USA
Photo: Ashburtonite from Rowley Mine, Theba, Painted Rock District, Painted Rock Mts, Maricopa Co., Arizona, USA
'Asphaltum'
Localities: Reported from at least 36 localities in this region.
Photo: © Van King. Asphaltum from Walworth Quarry, Walworth, Wayne Co., New York, USA
'Asphaltum var: Albertite'
Localities: Hampden quarry, West Springfield, Hampden Co., Massachusetts, USA
Millington Quarry (Morris County Crushed Stone Co. Quarry; Tilcon Quarry), Bernards Township, Somerset Co., New Jersey, USA
State Route 20 road cut, East Granby, Hartford Co., Connecticut, USA
Roncari Quarry (Tilcon Quarry), East Granby, Hartford Co., Connecticut, USA
Photo: © 2008, JGW. Albertite from Millington Quarry, Bernards Township, Somerset Co., New Jersey, USA
'Asphaltum var: Impsonite'
Locality: Pushmataha Co., Oklahoma, USA
'Asphaltum var: Nigrite'
Locality: Utah, USA
'Asphaltum var: Uintahite'
Localities: Reported from at least 33 localities in this region.
Photo: Uintahite from Fort Duchesne, Uintah Co., Utah, USA
Astrophyllite
Formula: (K,Na)3(Fe,Mn)7Ti2Si8O24(O,OH)7
Localities: Reported from at least 39 localities in this region.
Photo: © Charles Creekmur. Astrophyllite from St Peters Dome, Cheyenne District, El Paso Co., Colorado, USA
'Astrophyllite Group'
Locality: Granite Mountain No. 3 Quarry, Sweet Home, Granite Mountain complex, Saline Co., Arkansas, USA
Atacamite
Formula: Cu2(OH)3Cl
Localities: Reported from at least 76 localities in this region.
Photo: © 2003 R O. Meyer. Atacamite from Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Atelestite
Formula: Bi2(AsO4)O(OH)
Localities: Mammoth Mine (Mammoth shaft; Mammoth hoist and adit), Mammoth, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Northern Spy Mine (Carisa), Eureka, Tintic District, Utah Co., Utah, USA
30(-foot) level, Gold Hill Mine (Western Utah Mine), Gold Hill, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
Photo: © Brent Thorne. Atelestite from Gold Hill Mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
Atokite
Formula: (Pd,Pt)3Sn
Localities: Minneapolis adit, J-M Reef (Howland Reef), Stillwater Complex, Stillwater Co., Montana, USA
Stillwater Mine, Nye, Stillwater Co., Montana, USA
Augelite
Formula: Al2(PO4)(OH)3
Localities: Reported from at least 18 localities in this region.
Photo: © S.M. Whittemore. Augelite from Palermo No. 1 Mine, Groton, Grafton Co., New Hampshire, USA
Augite
Formula: (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Localities: Reported from at least 504 localities in this region.
Photo: © Michael C. Roarke. Augite from Tillamook Co., Oregon, USA
Augite var: Fassaite
Localities: Reported from at least 9 localities in this region.
Augite var: Ferroaugite
Locality: Augusta Co., Virginia, USA
Augite var: Jeffersonite
Formula: Ca(Mn,Zn,Fe)Si2O6
Localities: Passaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Photo: © 2009, JGW. Jeffersonite from Trotter Mine, Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Augite var: Titanian Augite
Formula: (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
Localities: Reported from at least 11 localities in this region.
Auriacusite (TL)
Formula: Fe3+Cu2+(AsO4)O
Type Locality: Black Pine Mine (Combination Mine; Black Pine tailings; Black Pine dump), Black Pine Ridge, John Long Mts, Philipsburg District (Flint Creek District), Granite Co., Montana, USA
Reference: IMA Approvals - August 2009; Gobla, M. J. (2012) Montana Mineral Locality Index. Rocks and Minerals 87:208-240.
Photo: © NHMLAC . Auriacusite from Black Pine Mine, Black Pine Ridge, John Long Mts, Philipsburg District, Granite Co., Montana, USA
Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
Localities: Reported from at least 285 localities in this region.
Photo: © . Aurichalcite from 79 Mine, Chilito, Hayden area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA
Aurivilliusite (TL)
Formula: (Hg+2)0.5Hg2+(I,Br,Cl)O
Type Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Reference: Roberts, A.C., J.A.R. Stirling, A.J. Criddle, G.E. Dunning, J. Spratt (2004) Mineralogical Magazine: 68(2): 241-245.
Aurorite (TL)
Formula: (Mn2+,Ag,Ca)Mn4+3O7 · 3H2O
Type Locality: North Aurora mine, Summit area, Treasure Hill, Silver Belt, White Pine District, White Pine Co., Nevada, USA
Reference: NBMG Spec. Pub. 31 Minerals of Nevada
Localities: Recorded from at least 11 other localities in this region.
Photo: © 2008 Jesse Crawford. Aurorite from Aurora mine, Sacramento District, White Pine Co., Nevada, USA
Aurostibite
Formula: AuSb2
Locality: Cannon Mine, Squillchuck Creek, Wenatchee, Wenatchee District, Chelan Co., Washington, USA
Austinite (TL)
Formula: CaZn(AsO4)(OH)
Type Locality: Gold Hill Mine (Western Utah Mine), Gold Hill, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 810; American Mineralogist (1971): 56: 1359. Kokinos, M. and Wise, W.S. (1993), Famous Mineral Localities: the Gold Hill mine, Tooele County, Utah. Mineralogical Record: 24(1): 11-22.
Localities: Recorded from at least 30 other localities in this region.
Photo: © DM 8/08. Austinite from Gold Hill Mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
Austinite var: Cuprian Austinite
Localities: Gold Hill Mine (Western Utah Mine), Gold Hill, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
Granite Gap, San Simon District, Peloncillo Mts, Hidalgo Co., New Mexico, USA
La Plata Co., Colorado, USA
Buckhorn Mine, Gallinas Mts, Red Cloud District, Lincoln Co., New Mexico, USA
80 foot level, Gold Hill Mine (Western Utah Mine), Gold Hill, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
Photo: © Yaiba Sakaguchi. Cuprian Austinite from Gold Hill Mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
Autunite
Formula: Ca(UO2)2(PO4)2 · 11H2O
Localities: Reported from at least 573 localities in this region.
Photo: © 2004 JBS. Autunite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Avicennite
Formula: Tl2O3
Localities: Thallium Prospect (Lookout Pass), Little Valley, Tooele Co., Utah, USA
Carlin Gold mine, Elko, Lynn District, Eureka Co., Nevada, USA
Photo: © Norman King. Avicennite from Thallium Prospect, Little Valley, Tooele Co., Utah, USA
Awaruite
Formula: Ni3Fe
Localities: Reported from at least 12 localities in this region.
Photo: © Pavel M. Kartashov. Awaruite from Josephine Creek placers, Josephine Creek District, Josephine Co., Oregon, USA
Axinite-(Fe)
Formula: Ca2Fe2+Al2BSi4O15OH
Localities: Reported from at least 49 localities in this region.
Photo: © Dan & Diana Weinrich Minerals. Axinite-(Fe) from New Melones Dam, Copperopolis, Calaveras Co., California, USA
'Axinite Group'
Localities: Reported from at least 103 localities in this region.
Photo: © Fred Schuster. Axinite Group from Independence Township, Jenny Jump Mountain, Warren Co., New Jersey, USA
Axinite-(Mg)
Formula: Ca2MgAl2BSi4O15OH
Localities: Luning area, Mineral Co., Nevada, USA
Gillis Range, Fitting District, Mineral Co., Nevada, USA
Old airport, Marquette, Marquette Co., Michigan, USA
Yankee Hill, Butte Co., California, USA
Photo: © C. Stefano '09. Axinite-(Mg) from Yankee Hill, Butte Co., California, USA
Axinite-(Mn) (TL)
Formula: Ca2Mn2+Al2BSi4O15(OH)
Type Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Reference: Aminoff, G., 1919, Mineralogical Studies on Material from Sjogren's Mineral Collection, Archiv. Kemi. Min. Geol. v 7, (17), p. 1-58.
Localities: Recorded from at least 23 other localities in this region.
Photo: Axinite-(Mn) from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
'Azovskite'
Formula: Fe3+3(PO4)(OH)6 or near
Locality: Greenbelt, Prince Georges Co., Maryland, USA
Azurite
Formula: Cu3(CO3)2(OH)2
Localities: Reported from at least 1986 localities in this region.
Photo: © Rob Lavinsky. Azurite from Czar Mine, Copper Queen Mine, Queen Hill, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Babingtonite
Formula: Ca2(Fe,Mn)FeSi5O14(OH)
Localities: Reported from at least 64 localities in this region.
Photo: © Scott Whittemore. Babingtonite from Route 101/101A road cuts, Amherst, Hillsborough Co., New Hampshire, USA
Baddeleyite
Formula: ZrO2
Localities: Reported from at least 13 localities in this region.
Photo: © Van King. Baddeleyite from Ham and Weeks Mine, Wakefield, Carroll Co., New Hampshire, USA
Bafertisite
Formula: Ba(Fe2+,Mn2+)2Ti(Si2O7)O(F,OH)2
Localities: Betts Manganese Mines (Anson Betts Mine; Plainfield Manganese Mines), Plainfield, Hampshire Co., Massachusetts, USA
Fountain Quarry, Fountain, Pitt Co., North Carolina, USA
Photo: © Arliguie M. Bafertisite from Fountain Quarry, Fountain, Pitt Co., North Carolina, USA
Bairdite (TL)
Formula: Pb2Cu2+4Te6+2O10(OH)2(SO4)•H2O
Type Locality: Bird Nest drift, Otto Mountain, Baker, San Bernardino Co., California, USA
Habit: Diamond shaped crystals.
Colour: Fluorescent green.
Reference: Kampf, A.R., Mills, S.J., Housley, R.M., Rossman, G.R., Marty, J. and Thorne, B. (2013) Bairdite, IMA 2012-061. CNMNC Newsletter No. 15, February 2013, page 6; Mineralogical Magazine, 77, 1-12.
Localities: Recorded from at least 1 other locality in this region.
Photo: Bairdite from Bird Nest drift, Otto Mountain, Baker, San Bernardino Co., California, USA
Bakerite (TL)
Formula: Ca4(H5B5Si3O20)
Type Locality: Corkscrew Canyon Mine (Corkscrew Mine), Ryan, Furnace Creek District (Furnace Creek Borate District; Death Valley Area Borate Deposits; Ryan area), Inyo Co., California, USA
Reference: www.mineralsocal.org; Mineralogical Magazine 1903 13 : 353-355.
Localities: Recorded from at least 8 other localities in this region.
Photo: © John Sobolewski. Bakerite from Corkscrew Canyon Mine, Ryan, Furnace Creek District, Inyo Co., California, USA
Balkanite
Formula: Cu9Ag5HgS8
Locality: Manhattan District, Nye Co., Nevada, USA
Photo: © 2008, JGW. Balkanite from Manhattan District, Nye Co., Nevada, USA
Banalsite
Formula: BaNa2[Al2Si2O8]2
Locality: Banalsite occurrence, Santa Rita Peak, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Bannisterite (TL)
Formula: Ca0.5(K,Na)0.5(Mn,Fe,Zn)10(Si,Al)16O38(OH)8 · 5.5H2O
Type Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Habit: Large platy masses
Colour: Brown
Reference: Dunn(1995):Pt4:487.; Smith, M.L. and Frondel, C. (1968) The related layered minerals ganophyllite, bannisterite and stilpnomelane. Mineralogical Magazine: 36: 893-913.
Localities: Recorded from at least 1 other locality in this region.
Photo: © Christopher O'Neill. Bannisterite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Baotite
Formula: Ba4(Ti,Nb)8Si4O28Cl
Localities: California State Gem Mine (Dallas Gem Mine; Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Sheep Creek, Mineral Point District, Ravalli Co., Montana, USA
Gordon Butte, Meagher Co., Montana, USA
Tirebiter No. 5 & No. 6 prospect (Tirebiter claim; Mona Lisa), Mineral Point District, Ravalli Co., Montana, USA
Barahonaite-(Al)
Formula: (Ca,Cu,Na,Fe3+,Al)12Al2(AsO4)8(OH,Cl)x · nH2O
Locality: 80 foot level, Gold Hill Mine (Western Utah Mine), Gold Hill, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
Photo: © Brent Thorne 2007. Barahonaite-(Al) from Gold Hill Mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
Bararite
Formula: (NH4)2[SiF6]
Localities: Kehley's Run Mine, Shenandoah, Schuylkill Co., Pennsylvania, USA
Burnside, Northumberland Co., Pennsylvania, USA
Photo: © 2007, JGW. Bararite from Burnside, Northumberland Co., Pennsylvania, USA
Barbosalite
Formula: Fe2+Fe3+2(PO4)2(OH)2
Localities: Bull Moose Mine, Custer, Custer District, Custer Co., South Dakota, USA
Barker-Ferguson Mine, Keystone, Keystone District, Pennington Co., South Dakota, USA
Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA
Williams pegmatite, Coosa Co., Alabama, USA
Palermo No. 1 Mine (Palermo No. 1 pegmatite), Groton, Grafton Co., New Hampshire, USA
Photo: © Saul Krotki 2004. Barbosalite from Bull Moose Mine, Custer, Custer District, Custer Co., South Dakota, USA
Bariandite
Formula: Al0.6(V5+,V4+)8O20 · 9H2O
Localities: Pandora Mine, Paradox Valley District, Paradox Valley, San Juan Co., Utah, USA
Firefly–Pigmay Mine, La Sal Quadrangle, San Juan Co., Utah, USA
Duggan Adit (Dugan Adit), Uravan District, Montrose Co., Colorado, USA
Cactus Rat Mine, Cisco, Yellow Cat District (W. part of Thompsons District), Grand Co., Utah, USA
Photo: Bariandite from Pandora Mine, Paradox Valley District, Paradox Valley, San Juan Co., Utah, USA
Bario-orthojoaquinite (TL)
Formula: (Ba,Sr)4Fe2Ti2[Si4O12]2O2 · H2O
Type Locality: California State Gem Mine (Dallas Gem Mine; Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Habit: Steep bipyramidal, truncated by the basal pinacoid.
Colour: Unknown
Description: Occurs in natrolite-filled veins cutting blueschist. Veins occur below the benitoite-neptunite joaquinite. Crystals to 8 mm long.
Reference: American Mineralogist (1982): 67: 809-816; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 470.
Localities: Recorded from at least 1 other locality in this region.
Photo: © Knut Eldjarn. Bario-orthojoaquinite from Victor claim, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Barioperovskite (TL)
Formula: BaTiO3
Type Locality: California State Gem Mine (Dallas Gem Mine; Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Habit: Unknown
Colour: Unknown
Reference: IMA website - Proposals approved in January 2007
Photo: © Caltech. Barioperovskite from California State Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Bariopharmacosiderite
Formula: Ba0.5Fe3+4(AsO4)3(OH)4 · 5H2O
Localities: Reported from at least 8 localities in this region.
Photo: © Steve Rust. Bariopharmacosiderite from Gold Hill Mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
'Barkevikite'
Localities: South Riverside Drive, Griffith Park, Hollywood, Hollywood Hills, Los Angeles, Santa Monica Mts, Los Angeles Co., California, USA
Unnamed Zeolite-Amphibole occurrence, West of the Dallas Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA (more information)
Unnamed Zeolite occurrence [1], Archer Camp, New Idria District, Diablo Range, Fresno Co., California, USA (more information)
Barnesite (TL)
Formula: (Na,Ca)V6O16 · 3H2O
Type Locality: Cactus Rat Mine, Cisco, Yellow Cat District (W. part of Thompsons District), Grand Co., Utah, USA
Reference: WEEKS, A.D., ROSS, D.R. & MARVIN, R.F. (1963): The occurrence and properties of barnesite, Na2V6O163H2O, a new hydrated sodium vanadate mineral from Utah. American Mineralogist 48, 1187-1195. EVANS, H.T. & HUGHES, J.M. (1990): Crystal chemistry of the natural vanadium bronzes. American Mineralogist 75, 508-521.
Localities: Recorded from at least 10 other localities in this region.
Photo: Barnesite from Yellow Cat District, Grand Co., Utah, USA
'Barnhardtite'
Localities: McGinn Mine, Charlotte District, Mecklenburg Co., North Carolina, USA
Cabarrus Co., North Carolina, USA
Pioneer Mills Mine, Charlotte Belt, Cabarrus Co., North Carolina, USA
Elk Knob Mine, Watauga Co., North Carolina, USA
Guilford Co., North Carolina, USA
'Barrandite'
Localities: Manhattan District, Nye Co., Nevada, USA
Tom Molly mine (Train prospect), Manhattan District, Nye Co., Nevada, USA
Photo: Barrandite from Manhattan, Manhattan District, Nye Co., Nevada, USA
Barrerite
Formula: (Na,K,Ca0.5)2[Al2Si7O18] · 7H2O
Localities: Rocky Pass, Kuiu Island, Sitka Borough, Alaska, USA
Kupreanof Island, Wrangell-Petersburg Borough, Alaska, USA
Unnamed outcrop, Seven Troughs District, Pershing Co., Nevada, USA
Cedar Mountain Stone Corp. Quarry (A. H. Smith quarry), Mitchell, Culpeper Co., Virginia, USA
Hound Island breccia, Kuiu Island, Sitka Borough, Alaska, USA
Photo: © Peter Kohorst. Barrerite from Kupreanof Island, Wrangell-Petersburg Borough, Alaska, USA
Barringerite
Formula: (Fe,Ni)2P
Localities: Canyon Diablo meteorite, Meteor Crater and vicinity, Winslow, Coconino Co., Arizona, USA
Murray meteorite, Calloway Co., Kentucky, USA
Barroisite (TL)
Formula: ☐{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
Type Locality: Cleary Creek, Fairbanks, Fairbanks North Star Borough, Alaska, USA
Reference: Am Min 63 (1978), 1023
Localities: Recorded from at least 4 other localities in this region.
'Bartholomite'
Formula: near Na2Fe(SO4)2(OH) · 0.5H2O
Locality: Saline Co., Arkansas, USA
Bartonite (TL)
Formula: K6Fe20S26S
Type Locality: Coyote Peak, Coastal Range, Humboldt Co., California, USA
Colour: Blackish brown
Description: Anhedral masses to several mm diameter intergrown with pyrrhotite.
Reference: Czamanske, G.K., R.C. Erd, B.F. Leonard & J.R. Clark (1981), Bartonite, a new potassium iron sulfide mineral: American Mineralogist: 66: 369-375; Fleischer, M. (1979) New Mineral Names. Bartonite. American Mineralogist: 64: 241; Evans, H.T. and J.R. Clark (1981) The crystal structure of bartonite, a potassium iron sulfide and its relationship to pentlandite and djerfisherite. American Mineralogist: 66: 376-384; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 67; American Mineralogist: (1983) 68: 245-254.
Localities: Recorded from at least 1 other locality in this region.
Photo: © 2008, JGW. Bartonite from Coyote Peak, Coastal Range, Humboldt Co., California, USA
Barylite
Formula: Be2Ba(Si2O7)
Localities: Crystal Peak area, Teller Co., Colorado, USA
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Pikes Peak, El Paso Co., Colorado, USA
Park Co., Colorado, USA
Photo: © Van King. Barylite from Crystal Peak area, Teller Co., Colorado, USA
Barysilite
Formula: Pb8Mn2+[Si2O7]3
Localities: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Belmont District, Nye Co., Nevada, USA
Parker Mine (Parker shaft), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Photo: © Rob Lavinsky. Barysilite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Baryte
Formula: BaSO4
Localities: Reported from at least 4400 localities in this region.
Photo: © . Baryte from Palos Verdes Hills, Palos Verdes peninsula, Los Angeles Co., California, USA
Baryte var: Baryte Rose
Locality: Lake Thunderbird area, Norman, Cleveland Co., Oklahoma, USA
Photo: © 2010, JGW. Baryte Rose from Lake Thunderbird area, Norman, Cleveland Co., Oklahoma, USA
Baryte var: Schoharite
Locality: Old Strontian Mine, Schoharie Township, Schoharie Co., New York, USA
Baryte var: Strontian Baryte
Localities: Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA
Bluebird Kyanite Mine (Vitrefax Mine; Bluebird Mine; Ogilby Kyanite deposit), Vitrefrax Hill (Bluebird Hill), Obregon, Cargo Muchacho District (Hedges District; Ogilby District), Cargo Muchacho Mts, Imperial Co., California, USA
Barytocalcite
Formula: BaCa(CO3)2
Localities: Reported from at least 17 localities in this region.
Photo: © Alan Goldstein. Barytocalcite from Diamond Jo Quarry, Magnet Cove, Hot Spring Co., Arkansas, USA
Barytolamprophyllite
Formula: (Ba,Na)2(Na,Ti,Fe3+)4Ti2(Si2O7)2O(OH,F)
Localities: Coyote Peak, Coastal Range, Humboldt Co., California, USA
Gordon Butte, Meagher Co., Montana, USA
Pegmatite Peak, Bearpaw Mts, Hill Co., Montana, USA
Magnet Cove, Hot Spring Co., Arkansas, USA
Photo: © 2008, JGW. Barytolamprophyllite from Coyote Peak, Coastal Range, Humboldt Co., California, USA
'Basaltic Hornblende'
Locality: Razor Creek Dome, Saguache Co., Colorado, USA
Bassanite
Formula: CaSO4 · 0.5H2O
Localities: Reported from at least 14 localities in this region.
Bassetite
Formula: Fe2+(UO2)2(PO4)2 · 8H2O
Localities: Reported from at least 13 localities in this region.
Photo: © 2005 JBS. Bassetite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
'Bastnäsite'
Localities: Reported from at least 93 localities in this region.
Photo: © Rob Lavinsky. Bastnäsite from Manitou District, El Paso Co., Colorado, USA
Bastnäsite-(Ce)
Formula: (Ce,La)(CO3)F
Localities: Reported from at least 42 localities in this region.
Photo: © SMS 2006. Bastnäsite-(Ce) from Red Cloud Fluorite mine, Gallinas Mts, Red Cloud District, Lincoln Co., New Mexico, USA
'Bastnäsite Group'
Formula: M(CO3)X where M = REE, Th and X = F or OH
Locality: Charneski Pit (Ladick East pit), Marathon Co., Wisconsin, USA
Bastnäsite-(La)
Formula: (La,Ce)(CO3)F
Localities: Jones Mill Quarry (Martin Marietta Quarry; Highway 51 Quarry; Mid-State Quarry), Magnet Cove, Hot Spring Co., Arkansas, USA
Keller Lake pegmatite, Waupaca Co., Wisconsin, USA
Mount Rosa pegmatite, Stove Mountain (Cookstove Mountain), El Paso Co., Colorado, USA
Photo: Bastnäsite-(La) from Jones Mill Quarry, Magnet Cove, Hot Spring Co., Arkansas, USA
Bastnäsite-(Y)
Formula: (Y,Ce)(CO3)F
Locality: Crockley pegmatite, Republic, Marquette Co., Michigan, USA
Photo: © . Bastnäsite-(Y) from Crockley pegmatite, Republic, Marquette Co., Michigan, USA
Baumhauerite
Formula: Pb12As16S36
Localities: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Passaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Zuni Mine (Zuñi Mine), Anvil Mountain, Red Mountain District, San Juan Co., Colorado, USA
Perseverance Mine (Valley Mine; Bishop Creek Mines), Kaiyuh District, Yukon-Koyukuk Borough, Alaska, USA
Keystone Mine, Birmingham, Blair Co., Pennsylvania, USA
Photo: Baumhauerite from Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
'Bauxite'
Localities: Reported from at least 50 localities in this region.
Photo: © Charles Creekmur. Bauxite from Bauxite Mines, Bauxite, Saline Co., Arkansas, USA
Bavenite
Formula: Ca4Be2Al2Si9O26(OH)2
Localities: Reported from at least 23 localities in this region.
Photo: © 2005 JBS. Bavenite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Bayerite
Formula: Al(OH)3
Locality: Carlile Shale, Cedar Co., Nebraska, USA
Bayldonite
Formula: PbCu3(AsO4)2(OH)2
Localities: Reported from at least 32 localities in this region.
Photo: © Joe Marty. Bayldonite from 150 level, Gold Hill Mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
Bayleyite (TL)
Formula: Mg2(UO2)(CO3)3 · 18H2O
Type Locality: Hillside Mine (Happy Jack MS 920 claim; Camp MS 919 claim; Seven Stars MS 916 claim), Bozarth Mesa, Bagdad, Eureka District, Yavapai Co., Arizona, USA
Habit: Sharp, well-faceted
Colour: sulphur-yellow
Description: Occurs with schröckingerite and gypsum on 300 level north of the shaft.
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 236, 238; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 111, 130, 365; Anderson, C.A., et al (1955), Geology and ore deposits of the Bagdad area, Yavapai County, Arizona, USGS PP 278: 50; Axelrod, J.M., et al (1951), The uranium minerals from the Hillside mine, Yavapai Co., AZ, Am.Min.: 36: 1-22; Frondel, C.C. (1958), Systematic mineralogy of uranium and thorium, USGS Bull. 1064: 119; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 51, 52.
Localities: Recorded from at least 24 other localities in this region.
Photo: © Peter Haas. Bayleyite from Ambrosia Lake area, Grants District, McKinley Co., New Mexico, USA
Bazirite
Formula: BaZr(Si3O9)
Localities: Esquire No. 7 claim, Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Baumann prospect (Bauman Ranch), Dumtah, Tulare Co., California, USA
Esquire No. 8 claim (Lander's Gillespite locality), Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Esquire No. 1 claim, Rush Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Snow Cap Mine, Rush Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Photo: © 2010, JGW. Bazirite from Esquire No. 8 claim, Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Bazzite
Formula: Be3Sc2(Si6O18)
Localities: Reported from at least 7 localities in this region.
Photo: © SMS 2006. Bazzite from Mt Antero, Chaffee Co., Colorado, USA
Beaverite-(Cu) (TL)
Formula: Pb(Fe3+,Cu)3(SO4)2(OH)6
Type Locality: Horn Silver Mine, Frisco, San Francisco District (Frisco District), San Francisco Mts, Beaver Co., Utah, USA
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 568.; Butler, B. S. (1913) Geology and ore deposits of the San Francisco and adjacent districts, Utah. USGS Professional Paper 80.
Localities: Recorded from at least 30 other localities in this region.
Photo: © Stephan Wolfsried. Beaverite-(Cu) from Bristol Silver Mines Inc., Bristol and Jackrabbit Districts, Lincoln Co., Nevada, USA
Bechererite (TL)
Formula: (Zn,Cu)6Zn2(SO4,HSiO4)2(OH)12
Type Locality: Tonopah-Belmont Mine (East Vulture Mine; Belmont-McNeil Mine; Economy Mining Co. Mine), Belmont Mountain, Tonopah, Osborn District, Big Horn Mts, Maricopa Co., Arizona, USA
Reference: Giester, G. and B. Rieck (1996) Bechererite, (Zn,Cu)6Zn2(OH)13[(S,Si)(O,OH)4]2, a novel mineral species from the Tonopah-Belmont mine, Arizona, American Mineralogist: 81: 244-248. Grant, Raymond W., Richard A. Bideaux & Sidney A. Williams (2006), Minerals Added to the Arizona List 1995 to 2005: 1.
Becquerelite
Formula: Ca(UO2)6O4(OH)6 · 8H2O
Localities: Reported from at least 39 localities in this region.
Photo: © FED 07. Becquerelite from Turner Mine, Marlow, Cheshire Co., New Hampshire, USA
'Beegerite'
Formula: Pb6Bi2S9
Localities: Baltic Lode, Grant, Park Co., Colorado, USA
Eagle Mine (New Jersey Zinc Eagle Mine; Gilman Mine; Wilkesbarre shaft; Newhouse tunnel; Little Chief Mine; Iron Mask Mine; Belden Mine; Black Iron Mine), Gilman, Gilman District (Battle Mountain District; Red Cliff District), Eagle Co., Colorado, USA
Old Lout Mine, Poughkeepsie Gulch, Red Mountain District, San Juan Co., Colorado, USA
Behierite
Formula: (Ta5+,Nb5+)(BO4)
Locality: Pine River pegmatite locality, Fern, Florence Co., Wisconsin, USA
Behoite (TL)
Formula: Be(OH)2
Type Locality: Rode Ranch pegmatite, Llano Co., Texas, USA
Reference: Ehlmann, A. J. (1970): Behoite, Beta-Be(OH)2, from the Rode Ranch pegmatite, Llano county, Texas. American Mineralogist 55: 1-9
Localities: Recorded from at least 3 other localities in this region.
Beidellite ? (TL)
Formula: (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Type Locality: Beidell, Crystal Hill District, Saguache Co., Colorado, USA
Reference: Minerals of Colorado (1997) Eckel, E. B.
Localities: Recorded from at least 46 other localities in this region.
Photo: © Bert Hendriksen. Beidellite from Cameron area, Cameron District, Coconino Co., Arizona, USA
'Beldongrite' ?
Formula: Mn18Fe2O33 · 8H2O
Locality: Crisle prospect (Crisle claim; Crisle Mine), Trimmer, Fresno Co., California, USA
'Belmontite'
Formula: (Pb, Si, O)
Locality: Belmont, Nye Co., Nevada, USA
Belovite-(Ce)
Formula: NaCeSr3(PO4)3F
Locality: Gordon Butte, Meagher Co., Montana, USA
Bementite (TL)
Formula: Mn7Si6O15(OH)8
Type Locality: Trotter Mine (Lehigh Mine), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Description: Occurs in ore within the Franklin orebody.
Reference: Koenig, G.A., Academy of Natural Sciences of Philadelphia Proceedings (1887):310-311; Dunn(1995):Pt4:488.
Localities: Recorded from at least 102 other localities in this region.
Photo: © 2009, JGW. Bementite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Benitoite (TL)
Formula: BaTi(Si3O9)
Type Locality: California State Gem Mine (Dallas Gem Mine; Benitoite Mine; Benitoite Gem Mine; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Habit: Euhedral and anhedral crystals
Colour: Colorless, sapphire-blue.
Fluorescence: Blue (SW UV)
Description: Occurs as crystals attached to vein walls in natrolite-filled veins.
Reference: Louderback, George Davis & Walter C. Blasdale (1909), Benitoite, its mineralogy, paragenesis and mode of occurrence: University of California, Department of Geological Sciences Bulletin: 5: 331; Louderback, George Davis & Walter C. Blasdale (1907), Benitoite, a new California gem mineral, with chemical analysis by Walter C. Blasdale: University of California, Department of Geological Sciences Bulletin: 5: 149-153; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 102; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 372, 466; Wise, W.S & Gill, R.H. (1977): Minerals of the Benitoite Gem mine. Mineralogical Record 8, 442-452.
Localities: Recorded from at least 14 other localities in this region.
Photo: © 1995-2001 Trinity Mineral Co.. Benitoite from California State Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
'Benitoite Group'
Locality: Micro-Lite Quarry (Hills Pond Lamproite), Woodson Co., Kansas, USA
Benjaminite (TL)
Formula: (Ag,Cu)3(Bi,Pb)7S12
Type Locality: Outlaw Mine, Round Mountain District, Nye Co., Nevada, USA
Description: The mineral was first studied by Shannon (1924), who concluded on the basis of chemical data only that it was a new species and proposed the name benjaminite. Nuffield (1953) re-examined the type specimen and determined that Shannon’s “benjaminite” was actually aikinite. Nuffield, however, noted a minute amount of another phase in the type specimen that deviated from Shannon’s description and analytical data. He described it as a new species retaining Shannon’s name for the mineral. Owing to erroneous data, benjaminite was briefly discredited (1973-1974). The type specimen from TL1 and specimens from two Canadian localities were investigated by Nuffield (1975) and Harris & Chen (1975), and data derived from all three localities were used in a joint proposal to IMA CNMMN for the revalidation of the species.
Reference: SHANNON, E.V. (1924): Benjaminite, a new sulfosalt mineral of the klaprothite group. Proceedings of the U.S. National Museum 65(24), 1-9. (check 1925) NUFFIELD, E.W. (1953): Benjaminite. American Mineralogist 38, 550-552. NUFFIELD, E.W. (1975): Benjaminite B a re-examination of the type material. Canadian Mineralogist 13, 394-401. HARRIS, D.C. & CHEN, T.T. (1975): Benjaminite, reinstated as valid species. Canadian Mineralogist 13, 402-407.
Localities: Recorded from at least 8 other localities in this region.
Photo: © Christopher O'Neill. Benjaminite from Outlaw Mine, Round Mountain District, Nye Co., Nevada, USA
Benleonardite
Formula: Ag8(Sb,As)Te2S3
Localities: Mayflower Prospect (West Mayflower Mine), Norwegian District (Whitehall District), Madison Co., Montana, USA
Geis Mine (Red Metal Claim group; Gies Mine; Elk Peak project; Bertha claim group), Cone Butte Sub-District, Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District), Fergus Co., Montana, USA
Benstonite (TL)
Formula: (Ba,Sr)6(Ca,Mn)6Mg(CO3)13
Type Locality: Baroid Sales Division pit, Baroid Mine (Chamberlain Creek Barite Mines), Chamberlain Creek Valley, Magnet Cove, Hot Spring Co., Arkansas, USA
Reference: American Mineralogist: 47: 585-598.
Localities: Recorded from at least 7 other localities in this region.
Photo: © Rob Lavinsky. Benstonite from Minerva No. 1 Mine Ozark-Mahoning Group, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
'Bentonite'
Localities: Reported from at least 144 localities in this region.
Photo: © mindat.org. Bentonite from Otay, San Diego Co., California, USA
Beraunite
Formula: Fe2+Fe3+5(PO4)4(OH)5 · 4H2O
Localities: Reported from at least 64 localities in this region.
Photo: Beraunite from Indian Mountain, Cherokee Co., Alabama, USA
Bergenite
Formula: Ca2Ba4(UO2)9(PO4)6O6 · 16H2O
Locality: Green River (South #2), Emery Co., Utah, USA
Berlinite
Formula: AlPO4
Localities: Washington Co., Maine, USA
Inspiration Mine, Miami-Inspiration deposit, Inspiration, Miami-Inspiration District, Globe-Miami District, Gila Co., Arizona, USA
Bermanite (TL)
Formula: Mn2+Mn3+2(PO4)2(OH)2 · 4H2O
Type Locality: 7U7 Ranch (7-U-7 Ranch), Bagdad Mine area, Hillside, Eureka District, Yavapai Co., Arizona, USA
Habit: Single crystals and sub-parallel aggregates with fan-shaped or rosette-like appearance.
Description: In narrow veins cutting a spherical mass of triplite.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 105, 132-133, 253-254, 275-276; Hurlbut, C.S., Jr. (1936), A new phosphate, bermanite, occurring with triplite in AZ, American Mineralogist: 21: 656-661; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 968; Leavens, P.B. (1967), Reexamination of bermanite, Am.Min.: 52: 1060-1066; Galbraith, F.W. & Brennan (1959), Minerals of AZ: 74, 101.
Localities: Recorded from at least 17 other localities in this region.
Photo: © 2004 ROM. Bermanite from Tip Top Mine, Fourmile, Custer District, Custer Co., South Dakota, USA
Berndtite
Formula: SnS2
Locality: Forestville, Schuylkill Co., Pennsylvania, USA
Photo: © 2007, JGW. Berndtite from Shamokin, Northumberland Co., Pennsylvania, USA
Berryite (TL)
Formula: Cu3Ag2Pb3Bi7S16
Type Locality: Missouri Mine, Hall Valley, Montezuma District, Park Co., Colorado, USA
Reference: Minerals of Colorado (1997) Eckel, E. B.
Localities: Recorded from at least 5 other localities in this region.
Photo: © Christopher O'Neill. Berryite from Mike Mine, San Juan Co., Colorado, USA
Berthierine
Formula: (Fe2+,Fe3+,AlMg)2-3((Si,Al)2O5)(OH)4
Localities: Sheep Mountain Mine, Albany Co., Wyoming, USA
Great Saltpetre Cave, Rockcastle Co., Kentucky, USA
Mines Road cross section, Diablo Range, Santa Clara Co., California, USA
Garzas, Mount Hamilton, Diablo Range, Santa Clara Co., California, USA
Clyde Long property (Surprise Claims; Elk Park Mine; Exxon lease; Centennial Claims), Elk Park, San Juan Co., Colorado, USA
Berthierite
Formula: FeSb2S4
Localities: Reported from at least 10 localities in this region.
Photo: © PMB. Berthierite from Murdock Mine, Spring Creek area, Last Chance District, Nevada Co., California, USA
Bertrandite
Formula: Be4(Si2O7)(OH)2
Localities: Reported from at least 211 localities in this region.
Photo: © 2004 JBS. Bertrandite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Beryl
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 1704 localities in this region.
Photo: © 2009 Mark H.F. Mauthner. Beryl from Oceanview Mine, Elizabeth R. Mine, Chief Mountain, Pala, Pala District, San Diego Co., California, USA
Beryl var: Alkali-beryl
Localities: Ray Mica Mine (Wray Mine), Hurricane Mountain, Burnsville, Spruce Pine District, Yancey Co., North Carolina, USA
Blue Bird prospect (Bountiful Beryl prospect), Wright Creek Ranch area, Peach Springs vicinity, Mohave Co., Arizona, USA
Beryl var: Aquamarine
Formula: Be3Al2Si6O18
Localities: Reported from at least 262 localities in this region.
Photo: © 2002 John H. Betts. Aquamarine from Aldrich Quarry, Stoneham, Oxford Co., Maine, USA
Beryl var: Emerald
Localities: Reported from at least 32 localities in this region.
Photo: Emerald from Hiddenite, Alexander Co., North Carolina, USA
Beryl var: Goshenite
Localities: Reported from at least 54 localities in this region.
Photo: © 2006 D. Levesque. Goshenite from Dunn Quarry, Norway, Oxford Co., Maine, USA
Beryl var: Heliodor
Localities: Reported from at least 103 localities in this region.
Photo: © 2006 Peter Cristofono. Heliodor from Bumpus Quarry, Albany, Oxford Co., Maine, USA
Beryl var: Morganite
Localities: Reported from at least 74 localities in this region.
Photo: © Rob Lavinsky . Morganite from Stewart Mine, Tourmaline Queen Mountain, Pala, Pala District, San Diego Co., California, USA
Beryl var: Red Beryl
Formula: Be3Al2Si6O18
Localities: Reported from at least 9 localities in this region.
Photo: © Jeff Scovil. Red Beryl from Ruby Violet claims, Wah Wah Mts, Beaver Co., Utah, USA
Beryl var: Vorobyevite
Locality: Brown Derby Mine, Quartz Creek Pegmatite District, Gunnison Co., Colorado, USA
Beryllonite (TL)
Formula: NaBePO4
Type Locality: Joe McKeen Mountain locality (McKean Farm), Stoneham, Oxford Co., Maine, USA
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 679; Nickel & Nichols, 1991 - "Mineral Reference Manual", p21.
Localities: Recorded from at least 20 other localities in this region.
Photo: © Van King. Beryllonite from Beryllonite Locality, Stoneham, Oxford Co., Maine, USA
Berzelianite
Formula: Cu2Se
Localities: Chihuahua stope, Durant vein, Aurora District, Mineral Co., Nevada, USA
Cannon Mine, Squillchuck Creek, Wenatchee, Wenatchee District, Chelan Co., Washington, USA
Gold Circle District (Midas District), Elko Co., Nevada, USA
Photo: © Brent Thorne 2008. Berzelianite from Chihuahua stope, Durant vein, Aurora District, Mineral Co., Nevada, USA
β-Fergusonite-(Ce)
Formula: (Ce,La,Nd)NbO4
Locality: Amherst Co., Virginia, USA
β-Fergusonite-(Y)
Formula: YNbO4
Locality: Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
'Betafite Group'
Formula: A2(Ti,Nb)2O6Z
Localities: Black River Pegmatite, Republic, Marquette Co., Michigan, USA
Rare Metals Mine (Waldren Mining Company Mine), Aquarius Mts (Aquarius Range; Peacock Range), Mohave Co., Arizona, USA
'β-Sulphur'
Locality: Forestville, Schuylkill Co., Pennsylvania, USA
β-Uranophane
Formula: Ca(UO2)2(HSiO4)2 · 5H2O
Localities: Reported from at least 40 localities in this region.
Photo: β-Uranophane from Jeff Davis Co., Texas, USA
Betekhtinite
Formula: Pb2(Cu,Fe)21S15
Localities: Reported from at least 7 localities in this region.
Photo: © Karl Volkman03/05. Betekhtinite from Butte, Butte District, Silver Bow Co., Montana, USA
Beudantite
Formula: PbFe3(AsO4)(SO4)(OH)6
Localities: Reported from at least 75 localities in this region.
Photo: © R.D.Green. Beudantite from Gold Hill Mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
'Beudantite Group'
Formula: AM3(XO4)(SO4)(OH)6
Locality: Cortez District, Lander Co., Nevada, USA
Beusite
Formula: (Mn2+,Fe2+,Ca,Mg)3(PO4)2
Localities: Reported from at least 6 localities in this region.
Photo: Beusite from Bull Moose Mine, Custer, Custer District, Custer Co., South Dakota, USA
Beyerite
Formula: Ca(BiO)2(CO3)2
Localities: Reported from at least 23 localities in this region.
Photo: © Arliguie M. Beyerite from Harding Mine, Picuris District, Taos Co., New Mexico, USA
Bezsmertnovite
Formula: (Au,Ag)4Cu(Te,Pb)
Locality: Trixie Mine (Trixie Shaft; Old Trump Prospect), East Tintic District, East Tintic Mts, Utah Co., Utah, USA
Photo: © Brent Thorne 2007. Bezsmertnovite from Trixie Mine, East Tintic District, East Tintic Mts, Utah Co., Utah, USA
Bianchite
Formula: (Zn,Fe)SO4 · 6H2O
Localities: Reported from at least 9 localities in this region.
Photo: © M.Heintzelman. Bianchite from Ueberroth Mine, Friedensville, Saucon Valley, Upper Saucon Township, Lehigh Co., Pennsylvania, USA
Bicchulite
Formula: Ca2(Al2SiO6)(OH)2
Locality: Taylor Hills, Uvalde Co., Texas, USA
Bideauxite (TL)
Formula: Pb2AgCl3(F,OH)2
Type Locality: Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Habit: Crystals 2 to 7 mm
Colour: Colorless
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 135; Williams, S.A. (1970a), Bideauxite, a new Arizona mineral, Min.Mag.: 37: 637-640; Nickel & Nichols, 1991 - "Mineral Reference Manual": 22.
Photo: © . Bideauxite from Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Bieberite
Formula: CoSO4 · 7H2O
Localities: Reported from at least 14 localities in this region.
Photo: © Brent Thorne. Bieberite from Colt Mesa Mine, Circle Cliffs, Garfield Co., Utah, USA
Bigcreekite (TL)
Formula: BaSi2O5 · 4H2O
Type Locality: Esquire No. 7 claim, Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Reference: [Can.Min.(2001) 39, 761-768; MinRec 33:161]
Localities: Recorded from at least 2 other localities in this region.
Photo: © Knut Eldjarn. Bigcreekite from Esquire No. 7 claim, Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Bikitaite
Formula: LiAlSi2O6 · H2O
Locality: Foote Lithium Co. Mine (Foote Mine), Kings Mountain District, Cleveland Co., North Carolina, USA
Photo: © 2004 JBS. Bikitaite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Bílinite
Formula: Fe2+Fe3+2(SO4)4 · 22H2O
Localities: Higgins Mine (Higgins tunnel), Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Mountain Cedar Prospect, Sultan District, Snohomish Co., Washington, USA
East Tintic District, East Tintic Mts, Utah Co., Utah, USA
Billietite
Formula: Ba(UO2)6O4(OH)6 · 4-8H2O
Localities: Mauch Chunk Ridge, Jim Thorpe (Mauch Chunk), Carbon Co., Pennsylvania, USA
Pick's Delta Mine (Delta Mine; Pick's Mine), Delta, San Rafael District (San Rafael Swell), Emery Co., Utah, USA
Mount Pisgah, Jim Thorpe (Mauch Chunk), Carbon Co., Pennsylvania, USA
Billingsleyite (TL)
Formula: Ag7AsS6
Type Locality: North Lily Mine (International Smelting Company; Wicklow), East Tintic District, East Tintic Mts, Utah Co., Utah, USA
Reference: AM 53 (1968), 1791; HB1 (1990); Am Min 53:1791-1798
Photo: © 2007, JGW. Billingsleyite from North Lily Mine, East Tintic District, East Tintic Mts, Utah Co., Utah, USA
'Bindheimite'
Formula: Pb2Sb2O6O
Localities: Reported from at least 119 localities in this region.
Photo: © 2002 John H. Betts. Bindheimite from Wamsley Mine, Ashby District, Mineral Co., Nevada, USA
'Biotite'
Localities: Reported from at least 2679 localities in this region.
Photo: © 2011 Harold Moritz. Biotite from Tilly Foster Iron Mine, Brewster, Southeast Township, Putnam Co., New York, USA
'Biotite var: Anomite'
Locality: Town of Tuxedo, Orange Co., New York, USA
'Biotite var: Barian-Titanian Biotite'
Locality: Oahu Island, Honolulu Co., Hawaii, USA
'Biotite var: Manganophyllite'
Formula: K(Mn,Mg,Al)2-3(Al,Si)4O10(OH)2
Localities: Panco Manganese Deposit, Snowmass Area, Pitkin Co., Colorado, USA
Auburn, Androscoggin Co., Maine, USA ? (more information)
'Biotite var: Oxybiotite'
Locality: Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Birnessite
Formula: (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Localities: Reported from at least 33 localities in this region.
Photo: © Brent Thorne. Birnessite from Gold Hill Mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
'Bisbeeite'
Formula: (Cu,Mg)SiO3·nH2O
Localities: Candelaria breccia pipe, Copper Mountain District (Clifton-Morenci District), Shannon Mts, Greenlee Co., Arizona, USA
Shattuck Mine (Shattuck-Denn Mine; Shattuck-Arizona Mine; Denn Mine), Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Azurite Mine, Tortolita Mts, Pinal Co., Arizona, USA
New Cornelia Mine (Ajo Mine), Ajo, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA
Hardshell Mine (Manto Mine; Eagle-Picher properties), Hardshell Gulch, Harshaw, Harshaw District, Patagonia Mts, Santa Cruz Co., Arizona, USA ? (more information)
Photo: © Jasun McAvoy. Bisbeeite from Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Bischofite
Formula: MgCl2 · 6H2O
Localities: Carlsbad Potash District, Eddy and Lea Counties, New Mexico, USA
Salduro, Tooele Co., Utah, USA
Wendover, Tooele Co., Utah, USA
Tularosa Basin, Otero Co., New Mexico, USA ? (more information)
Bismite
Formula: Bi2O3
Localities: Reported from at least 54 localities in this region.
Photo: © 2010 Harold Moritz. Bismite from Hewitt Gem Quarry, Haddam, Middlesex Co., Connecticut, USA
Bismoclite
Formula: (BiO)Cl
Localities: Reported from at least 12 localities in this region.
Bismuth
Formula: Bi
Localities: Reported from at least 217 localities in this region.
Photo: © C. Stefano '08. Bismuth from Lane's [Lead and Silver] Mine, Monroe, Fairfield Co., Connecticut, USA
Bismuthinite
Formula: Bi2S3
Localities: Reported from at least 279 localities in this region.
Photo: © Rob Lavinsky. Bismuthinite from Creole Mine, Lincoln District, Mineral Range, Beaver Co., Utah, USA
Bismuthinite var: Horobetsuite
Formula: (Bi,Sb)2S3
Localities: Paradise Peak mine (Goose mine), Paradise Peak District, Nye Co., Nevada, USA
Paradise Peak mine open pit, Belmont District, Nye Co., Nevada, USA
Bismutite
Formula: (BiO)2CO3
Localities: Reported from at least 223 localities in this region.
Photo: © 2008 Peter Cristofono. Bismutite from Anderson-Apache mine, Apache No. 2 District, Hidalgo Co., New Mexico, USA
Bismutoferrite
Formula: Fe3+2Bi(SiO4)2(OH)
Localities: Lodi No. 4 Mine (Lodi No. 4 claim), Spring Creek area, Last Chance District, Nevada Co., California, USA
Case quarries, Portland, Middlesex Co., Connecticut, USA
Photo: © 2010 Harold Moritz. Bismutoferrite from Case quarries, Portland, Middlesex Co., Connecticut, USA
Bismutotantalite
Formula: Bi(Ta,Nb)O4
Localities: Harding Mine (Harding pegmatite), Picuris District, Taos Co., New Mexico, USA
Tourmaline King Mine (Gem claim; King mine; MS 4500; MS 4926; Schuyler mine; Wilke mine), Tourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala District, San Diego Co., California, USA
Photo: © 2009 EMC. Bismutotantalite from Tourmaline King Mine, Tourmaline Queen Mountain, Pala, Pala District, San Diego Co., California, USA
'Bitumen'
Localities: Reported from at least 44 localities in this region.
Photo: © Alan Goldstein. Bitumen from Hastie's Quarry, Spar Mountain, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
'Bitumen var: Elaterite'
Localities: Connecticut, USA
Utah, USA
Conklin Quarry, Lime Rock, Lincoln, Providence Co., Rhode Island, USA
Photo: © 2010 Ken Gliesman. Elaterite from Conklin Quarry, Lime Rock, Lincoln, Providence Co., Rhode Island, USA
Bityite
Formula: LiCaAl2(AlBeSi2O10)(OH)2
Localities: Foote Lithium Co. Mine (Foote Mine), Kings Mountain District, Cleveland Co., North Carolina, USA
Strickland Quarry (Eureka Quarry), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
Harding Mine (Harding pegmatite), Picuris District, Taos Co., New Mexico, USA
Photo: © mslama. Bityite from Harding Mine, Picuris District, Taos Co., New Mexico, USA
Bixbyite (TL)
Formula: Mn3+2O3
Type Locality: Maynard's claim (Pismire Knolls), Thomas Range, Juab Co., Utah, USA
Reference: Am Min 74 (1989), 1325; Lapis 5 (1986), 5; Bowling, R. (2011) Topaz from Utsh's Maynard Mine Extra Lapis English 14:22-25
Localities: Recorded from at least 23 other localities in this region.
Photo: © Chinellato Matteo. Bixbyite from Thomas Range, Juab Co., Utah, USA
Bjarebyite (TL)
Formula: (Ba,Sr)(Mn2+,Fe2+,Mg)2Al2(PO4)3(OH)3
Type Locality: Palermo No. 1 Mine (Palermo No. 1 pegmatite), Groton, Grafton Co., New Hampshire, USA
Reference: Moore, P. B. & D. H. Lund (1973) Mineralogical Record: 4: 282-285; American Mineralogist (1974): 59, 87; Schw. Min.d Petr. Mitt. (1975): 55, 9.; Mineralogical Record (1973) 4:103-130
Localities: Recorded from at least 1 other locality in this region.
Photo: © Knut Eldjarn. Bjarebyite from Palermo No. 1 Mine, Groton, Grafton Co., New Hampshire, USA
'Blakeite' (TL)
Formula: Fe3+2[TeO3]3 (?)
Type Locality: Mohawk Mine, Goldfield, Goldfield District, Esmeralda Co., Nevada, USA
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 643.
Localities: Recorded from at least 2 other localities in this region.
'Blanchardite'
Locality: Blanchard Mine (Portalas-Blanchard Mine), Bingham, Hansonburg District, Socorro Co., New Mexico, USA
Blatonite (TL)
Formula: (UO2)CO3 · H2O
Type Locality: Jomac Mine, White Canyon, White Canyon District, San Juan Co., Utah, USA
Description: From the Triassic Shinarump Conglomerate.
Reference: Can.Min.(1998) 36, 1077-1081; Min News 14:10 p 4,4,7; Min Rec 30 pp231-238
Photo: © Stefano \'07. Blatonite from Jomac Mine, White Canyon, White Canyon District, San Juan Co., Utah, USA
'Blaubleibender Covellite'
Localities: Viburnum Trend District, Reynolds Co., Missouri, USA
El Paso Mine, Cripple Creek, Cripple Creek District, Teller Co., Colorado, USA
Blödite
Formula: Na2Mg(SO4)2 · 4H2O
Localities: Reported from at least 25 localities in this region.
Photo: © T. Kennedy 2002. Blödite from Soda Lake, Carrizo Plain, San Luis Obispo Co., California, USA
Bobdownsite
Formula: Ca9Mg(PO4)6(PO3F)
Locality: Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA
Photo: © 2012, JGW. Bobdownsite from Tip Top Mine, Fourmile, Custer District, Custer Co., South Dakota, USA
Bobierrite
Formula: Mg3(PO4)2 · 8H2O
Locality: Edgerton, Pipestone Co., Minnesota, USA
Bobjonesite (TL)
Formula: (V4+O)(SO4) · 3H2O
Type Locality: North Mesa Mine group, San Rafael District (San Rafael Swell), Emery Co., Utah, USA
Description: Blue-green crusts and efflorescences in fractures in a fossil (Triassic) tree; individual crystals are <<1 mm and are intimately intergrown.
Reference: M. Schindler et al. (2003) Can. Mineral. 41, 83-90
Localities: Recorded from at least 1 other locality in this region.
Photo: © Rockpick Legend Co.. Bobjonesite from North Mesa no. 1 Mine, North Mesa 1; 2; 5 Mines, North Mesa Mine group, San Rafael District, Emery Co., Utah, USA
Bobmeyerite (TL)
Formula: Pb4Al4(Si4O12)(OH)11Cl(H2O)
Type Locality: Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Reference: Kampf, A.R., Pluth, J.J., Chen, Y.-S., Roberts, A.C. and Housley, R.M. (2012): Bobmeyerite, IMA 2012-019. CNMNC Newsletter No. 14, October 2012, page 1282; Mineralogical Magazine, 76, 1281-1288.
Photo: © 2012 ROM. Bobmeyerite from Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Bogdanovite
Formula: (Au,Te,Pb)3(Cu,Fe)
Localities: Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Campbell Mine (Campbell shaft), Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Photo: © Brent Thorne 2013. Bogdanovite from Campbell Mine, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Boggsite (TL)
Formula: Ca8Na3(Si,Al)96O192 · 70H2O
Type Locality: Neer Road, Goble, Columbia Co., Oregon, USA
Description: Occurs on the top of a small projection of basalt located above a vertical cliff along Goble Creek, on the south of the Neer Road, approximately 50m west of the junction with Highway 30, 200m north of Goble.
Reference: Amer.Min.(1990) 75:501-507; 75:1200-1204; Micro Probe Vol. 6 No. 5 Fall 1987; Tschernich, R. (1992): Zeolites of the World, 117
Photo: © 2004 ROM. Boggsite from Neer Road, Goble, Columbia Co., Oregon, USA
Böhmite
Formula: AlO(OH)
Localities: Reported from at least 24 localities in this region.
Bokite
Formula: (Al,Fe3+)1.3(V5+,V4+,Fe3+)8O20 · 7.4H2O
Localities: Reported from at least 6 localities in this region.
Photo: © 2008, JGW. Bokite from Monument No. 2 Mine, Monument No. 2 channel, Monument Valley, Navajo Indian Reservation, Apache Co., Arizona, USA
Boleite
Formula: KPb26Ag9Cu24(OH)48Cl62
Localities: Reported from at least 15 localities in this region.
Photo: © 2003 R.O. Meyer. Boleite from Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Boltwoodite (TL)
Formula: (K,Na)(UO2)[HSiO4] · 0.5H2O
Type Locality: Pick's Delta Mine (Delta Mine; Pick's Mine), Delta, San Rafael District (San Rafael Swell), Emery Co., Utah, USA
Reference: [Nickel & Nichols, 1991 - "Mineral Reference Manual, p25]
Localities: Recorded from at least 28 other localities in this region.
Photo: © Michael Cline. Boltwoodite from New Method Mine, Amboy, Bristol Mts, San Bernardino Co., California, USA
Bonattite
Formula: CuSO4 · 3H2O
Localities: Steamboat Hot Springs, Steamboat Springs District, Washoe Co., Nevada, USA
Grand Reef Mine (Aravaipa Mine; Lead Jewel; Joe Rubal Mine; Vivian Mine; Calistoga Mining & Development Co. Mine; Bringham Silver and Lead Mine), Laurel Canyon, Grand Reef Mountain, Klondyke, Santa Teresa Mts, Aravaipa District, Graham Co., Arizona, USA
Photo: Bonattite from Steamboat Hot Springs, Steamboat Springs District, Washoe Co., Nevada, USA
Boothite (TL)
Formula: CuSO4 · 7H2O
Type Locality: Alma Mine (Alma Pyrite Mine), Leona Heights deposit, Leona Heights, Oakland, Oakland Hills, Diablo Range, Alameda Co., California, USA
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 505; Schaller, Waldemar Theodore (1903a), Minerals from Leona Heights, Alameda County, California: University of California, Department of Geological Sciences Bulletin: 3: 207; Schaller, Waldemar Theodore (1905b), Mineralogical notes: USGS Bulletin 262: 123; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 296.; Anthony R. Kampf & FM Locality Index Committee (1989) California Locality Index. Mineralogical Record, 20:129-142.
Localities: Recorded from at least 12 other localities in this region.
Photo: © 2009, JGW. Boothite from Alma Mine, Leona Heights deposit, Leona Heights, Oakland, Oakland Hills, Diablo Range, Alameda Co., California, USA
Boracite
Formula: Mg3(B7O13)Cl
Localities: Reported from at least 8 localities in this region.
Borax
Formula: Na2(B4O5)(OH)4 · 8H2O
Localities: Reported from at least 40 localities in this region.
Photo: © . Borax from U.S. Borax open pit, U.S. Borax Mine, Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
Bornite
Formula: Cu5FeS4
Localities: Reported from at least 1887 localities in this region.
Photo: © M.Heintzelman. Bornite from Teeter's Quarry, Gettysburg, Adams Co., Pennsylvania, USA
Bornite var: Argentiferous Bornite
Localities: Olivette and Annette Mines (Olivette Mine; Olive Mine; New Olivette Mine; Corda Brothers group; Corda group), Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA
Daisy Creek prospect, Thompson Falls, Sanders Co., Montana, USA
Genesee Mine (Genesee-Vanderbilt Mine), Red Mountain District, San Juan Co., Colorado, USA
Unnamed Prospect (ARDF - CA013; upper Peace River), Fairhaven District, Northwest Arctic Borough, Alaska, USA
'Borocalcite'
Locality: Lick Springs, Shasta Co., California, USA
Boromuscovite (TL)
Formula: KAl2(BSi3O10)(OH)2
Type Locality: Little Three Mine (Little 3 mine), Ramona, Ramona District, San Diego Co., California, USA
Reference: Foord, Eugene E. et al (1989), Mineralogy and Paragenesis of the Little Three Mine Pegmatites, Ramona District, San Diego County, California. Mineralogical Record, 20(2): p. 111-112; American Mineralogist (1991), 76: 1998-2002.
Photo: © Alan Goldstein. Boromuscovite from Little Three Mine, Ramona, Ramona District, San Diego Co., California, USA
Bostwickite (TL)
Formula: CaMn6Si3O16 · 7H2O
Type Locality: Taylor Mine, Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Description: Occurs in ore within the Franklin orebody.
Reference: Dunn & Leavens(1983); Min. Mag.:47:387-389; Dunn(1995):Pt4:498.
Photo: © AVK. Bostwickite from Taylor Mine, Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Botallackite
Formula: Cu2(OH)3Cl
Localities: Reported from at least 6 localities in this region.
Photo: Botallackite from St. Joe No. 3 Mine, Balmat, Balmat-Edwards Zinc District, St. Lawrence Co., New York, USA
Botryogen
Formula: MgFe3+(SO4)2(OH) · 7H2O
Localities: Reported from at least 14 localities in this region.
Photo: Botryogen from Glen Echo Ravine, Columbus, Franklin Co., Ohio, USA
Boulangerite
Formula: Pb5Sb4S11
Localities: Reported from at least 144 localities in this region.
Photo: © Karl Volkman03/05. Boulangerite from Cleveland Mine, Adams Mountain, Deer Trail & Cedar Canyon Districts, Huckleberry Range, Stevens Co., Washington, USA
Bournonite
Formula: PbCuSbS3
Localities: Reported from at least 96 localities in this region.
Photo: © Rob Lavinsky. Bournonite from Silver King Mine, Park City District, Wasatch Mts, Summit Co., Utah, USA
Boussingaultite
Formula: (NH4)2Mg(SO4)2 · 6H2O
Localities: Reported from at least 6 localities in this region.
Photo: © Arliguie M. Boussingaultite from The Geysers, West Mayacmas District, Mayacmas Mts, Sonoma Co., California, USA
Bowieite (TL)
Formula: (Rh,Ir,Pt)2S3
Type Locality: Salmon River - Red Mountain District, Goodnews Bay, Bethel Borough, Alaska, USA
Reference: Canadian Mineralogist: 22: 543-552.
Localities: Recorded from at least 1 other locality in this region.
Photo: © Norman King. Bowieite from Salmon River, Salmon River - Red Mountain District, Goodnews Bay, Bethel Borough, Alaska, USA
'Brabantite' ?
Formula: CaTh(PO4)2
Localities: Taylor Creek Tin District (Black Range Tin District), Sierra Co., New Mexico, USA ? (more information)
Beryllium Virgin claim, Paramount Canyon, Sierra Co., New Mexico, USA ? (more information)
Brackebuschite
Formula: Pb2(Mn3+,Fe3+)(VO4)2(OH)
Localities: Reported from at least 6 localities in this region.
Photo: © 2009, JGW. Brackebuschite from Paradox Valley, Uravan District, Montrose Co., Colorado, USA
Bradleyite (TL)
Formula: Na3Mg(CO3)(PO4)
Type Locality: John Hay Jr. Well No. 1, Green River Formation, Sweetwater Co., Wyoming, USA
Reference: Am Min 26:646-650
Localities: Recorded from at least 2 other localities in this region.
Photo: Bradleyite from Westvaco mine, Green River formation, Sweetwater Co., Wyoming, USA
Braggite
Formula: (Pt,Pd,Ni)S
Localities: Reported from at least 13 localities in this region.
Photo: © Keith Wood. Braggite from Stillwater Complex, Stillwater Co., Montana, USA
Braitschite-(Ce) (TL)
Formula: (Ca,Na2)7(Ce,La)2B22O43 · 7H2O
Type Locality: Cane Creek potash mine (Texas Gulf Sulfur), Interriver District, Grand Co., Utah, USA
Reference: Am Min 53:1081-1095
Localities: Recorded from at least 1 other locality in this region.
Photo: © Brent Thorne. Braitschite-(Ce) from Cane Creek potash mine, Interriver District, Grand Co., Utah, USA
Brandtite
Formula: Ca2(Mn2+,Mg)(AsO4)2 · 2H2O
Locality: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Photo: © Rob Lavinsky. Brandtite from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Brannerite (TL)
Formula: (U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6
Type Locality: Kelley Gulch, Stanley, Stanley Basin District, Custer Co., Idaho, USA
Reference: Rocks &Min.: 70(4): 242-263; Hess, F.L. & R.C. Wells (1920), Brannerite, a new uranium mineral, in Franklin Institute Jour.: 225-237 & 779 + 780.
Localities: Recorded from at least 32 other localities in this region.
Photo: Brannerite from Mt Antero, Chaffee Co., Colorado, USA
Brannockite (TL)
Formula: (K,Na)□2Li3(Sn,Zr,Ti)2[Si12O30]
Type Locality: Foote Lithium Co. Mine (Foote Mine), Kings Mountain District, Cleveland Co., North Carolina, USA
Habit: Platy.
Colour: Colorless. Also white or off-white.
Fluorescence: blue or blue-white SW. Important diagnostic tool.
Reference: Rocks & Minerals: 60: 65, 76-83.; Rocks and Minerals, (1985) 60:76-82; Carolina Geological Society Field Trip Guidebook 1981, 39-48
Localities: Recorded from at least 1 other locality in this region.
Photo: © JBS 2006. Brannockite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Braunite
Formula: Mn2+Mn3+6(SiO4)O8
Localities: Reported from at least 93 localities in this region.
Photo: Braunite from Panco Manganese Deposit, Snowmass Area, Pitkin Co., Colorado, USA
Brazilianite
Formula: NaAl3(PO4)2(OH)4
Localities: Reported from at least 13 localities in this region.
Photo: © 2001 John H. Betts. Brazilianite from Chandlers Mill Quarry, Newport, Sullivan Co., New Hampshire, USA
Bredigite
Formula: Ca7Mg(SiO4)4
Localities: Unnamed skarn deposit, Christmas Mts, Brewster Co., Texas, USA
Marble Canyon Mine (Texas Agricultural Aggregates Quarry), Apache Peak area, Culberson Co., Texas, USA
Breithauptite
Formula: NiSb
Localities: Trotter Mine (Lehigh Mine), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Coyote Peak, Coastal Range, Humboldt Co., California, USA
Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex Co., Connecticut, USA ? (more information)
Arsenic and nickel mine (Nickel Mine Brook), Seymour, New Haven Co., Connecticut, USA ? (more information)
Brenkite
Formula: Ca2(CO3)F2
Locality: Point of Rocks Quarry, Point of Rocks Mesa (Pecks Mesa), Springer, Colfax Co., New Mexico, USA
'Brewsterite' ?
Localities: Ash Creek locality, Ash Creek, Pieta, Mendocino Co., California, USA ? (more information)
Danbury, Fairfield Co., Connecticut, USA ? (more information)
North Street mall, Danbury, Fairfield Co., Connecticut, USA ? (more information)
Brewsterite-Ba (TL)
Formula: (Ba,Sr)[Al2Si6O16] · 5H2O
Type Locality: Gouverneur Talc Company No. 4 Quarry (Valentine deposit; Valentine property), Harrisville, Diana Township, Lewis Co., New York, USA
Reference: Robinson, G.W. & Grice, J.D. (1993): The barium analog of brewsterite from Harrisville, New York. Canadian Mineralogist, 31, 676-690.
Photo: © 2008, JGW. Brewsterite-Ba from Gouverneur Talc Company No. 4 Quarry, Harrisville, Diana Township, Lewis Co., New York, USA
Brewsterite-Sr
Formula: (Sr,Ba,Ca)[Al2Si6O16] · 5H2O
Locality: Gouverneur Talc Company No. 4 Quarry (Valentine deposit; Valentine property), Harrisville, Diana Township, Lewis Co., New York, USA
Brezinaite (TL)
Formula: Cr3S4
Type Locality: Irwin-Ainsa meteorite (Tucson meteorite), Box Canyon, Greaterville District, Santa Rita Mts, Pima Co., Arizona, USA
Description: Occurs in iron meteorite as tiny (5-80 micron) anhedral grains in metal matrix & contiguous to silicate inclusions.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 145.; t: Bunch, T.E. and L.H. Fuchs (1969) A new mineral: brezinaite, Cr3S4, and the Tucson meteorite. Amer. Mineral., 54, 1509–1518.
Localities: Recorded from at least 2 other localities in this region.
Brianite (TL)
Formula: Na2CaMg(PO4)2
Type Locality: Dayton meteorite, Montgomery Co., Ohio, USA
Reference: Am Min 60:717-718
Brianyoungite
Formula: Zn3(CO3,SO4)(OH)4
Locality: Hegeler Zinc smelter (slag locality), Hegeler, Danville, Vermilion Co., Illinois, USA
Briartite
Formula: Cu2(Fe,Zn)GeS4
Locality: Inexco Mine, Jamestown District, Boulder Co., Colorado, USA
Brindleyite
Formula: (Ni,Al)3(Si,Al)2O5(OH)4
Locality: Victorio, Luna Co., New Mexico, USA
Photo: © 2007, JGW. Brindleyite from Victorio, Luna Co., New Mexico, USA
Britholite-(Ce)
Formula: Ca2(Ce,Ca)3(SiO4,PO4)3(OH,F)
Localities: Reported from at least 8 localities in this region.
Photo: Britholite-(Ce) from Rusty Gold Mine, Jamestown District, Boulder Co., Colorado, USA
'Britholite Group'
Localities: Diamond Jo Quarry, Magnet Cove, Hot Spring Co., Arkansas, USA
Big Rock Quarry (3M Quarry; Arch Street Pike Quarry), Granite Mountain area, Little Rock, Pulaski Co., Arkansas, USA
Britholite-(Y)
Formula: Ca2(Y,Ca)3(SiO4,PO4)3(OH,F)
Localities: Iron Hill (Iron Hill carbonatite complex), White Earth District (Powderhorn District), Gunnison Co., Colorado, USA
Black River Pegmatite, Republic, Marquette Co., Michigan, USA
Wet Mountains Area, Fremont Co., Colorado, USA
Petrick pegmatite, Kingsland Granite Company Quarry (Petrick Quarry), Llano Co., Texas, USA
Buff Peak prospect, Bottle Creek District, Humboldt Co., Nevada, USA ? (more information)
Brochantite
Formula: Cu4(SO4)(OH)6
Localities: Reported from at least 331 localities in this region.
Photo: © 2004 ROM. Brochantite from Black Pine Mine, Black Pine Ridge, John Long Mts, Philipsburg District, Granite Co., Montana, USA
Brockite (TL)
Formula: (Ca,Th,Ce)PO4 · H2O
Type Locality: Unnamed prospect, Bassick Mine area, Querida, Wet Mountains Area, Custer Co., Colorado, USA
Reference: Fisher, F.G. & R. Meyrowitz (1962), Brockite, a new calcium thorium phosphate from the Wet Mountains, Colorado, Am.Min: 47: 1346-1355.
Localities: Recorded from at least 22 other localities in this region.
Photo: Brockite from Morefield Mine, Winterham, Amelia Co., Virginia, USA
'Brodrickite'
Locality: Bolton Lime Quarries (Bolton quarry; Whitcomb quarry; Hildreth quarry), Bolton, Worcester Co., Massachusetts, USA
Bromargyrite
Formula: AgBr
Localities: Reported from at least 119 localities in this region.
Photo: © Rick Turner, 2004. Bromargyrite from Shattuck Mine, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Brookite
Formula: TiO2
Localities: Reported from at least 124 localities in this region.
Photo: Brookite from Buckwheat Dump Mineral Collecting Site, Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Brucite (TL)
Formula: Mg(OH)2
Type Locality: Castle Point, Hoboken, Bergen Hill, Hudson Co., New Jersey, USA
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 273; NJ State Geol. Ann. Rpt(1900):186.
Localities: Recorded from at least 111 other localities in this region.
Photo: © . Brucite from Wood's Chrome Mine, Texas, Little Britain Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA
Brucite var: Nemalite
Localities: Castle Point, Hoboken, Bergen Hill, Hudson Co., New Jersey, USA
Piermont, Orangetown, Rockland Co., New York, USA
Tilly Foster Iron Mine, Brewster, Southeast Township, Putnam Co., New York, USA
Bismark Mountain Prospect, Shungnak District, Northwest Arctic Borough, Alaska, USA
Devil's Den (Devil's Den lime pit), Newbury, Essex Co., Massachusetts, USA
Photo: Nemalite from Belvidere Mountain Quarries, Lowell & Eden, Orleans & Lamoille Cos., Vermont, USA
'Brugnatellite'
Formula: Mg6Fe3+(CO3)(OH)13 · 4H2O
Locality: Iron Hill (Iron Hill carbonatite complex), White Earth District (Powderhorn District), Gunnison Co., Colorado, USA
Brushite
Formula: Ca(HPO4) · 2H2O
Localities: Reported from at least 6 localities in this region.
Buckhornite (TL)
Formula: AuPb2BiTe2S3
Type Locality: Buckhorn Mine (Bigthing), Jamestown, Jamestown District, Boulder Co., Colorado, USA
Reference: Minerals of Colorado (1997) Eckels, E. B.
Localities: Recorded from at least 1 other locality in this region.
Buddingtonite (TL)
Formula: (NH4)AlSi3O8
Type Locality: Sulphur Bank Mine (Sulfur Bank Mine; Sulphur Bank deposits), Clear Lake Oaks, Sulphur Creek District (Sulfur Creek District; Wilbur Springs District), Lake Co., California, USA
Description: Occurs as a hydrothermal product in compact masses resulting from the action of ammonia-bearing hot springs on older rocks; pseudomorphs after plagioclase; largely in altered pyroxene andesite. Occasionally as small crystals.
Reference: Erd, R.C., D.E. White, J.J. Fahey & D.E. Lee (1964), Buddingtonite, an ammonium feldspar with zeolitic water: American Mineralogist: 49: 831, 833; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 279, 360.
Localities: Recorded from at least 13 other localities in this region.
Photo: © Caltech. Buddingtonite from Sharon Heights, Menlo Park, San Mateo Co., California, USA
Bultfonteinite
Formula: Ca2(HSiO4)F · H2O
Localities: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Commercial quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Riverside Co., California, USA
Photo: © JSS. Bultfonteinite from Commercial quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Riverside Co., California, USA
Burangaite
Formula: NaFe2+Al5(PO4)4(OH)6 · 2H2O
Locality: Gold Quarry Mine (Maggie claims; Nevada Bureau of Mines & Geology Sample Site No. 1560; Deep West Ore Body), Maggie Creek Subdistrict, Carlin Trend, Eureka Co., Nevada, USA
Burbankite (TL)
Formula: (Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Type Locality: Vermiculite prospect No. 6, Big Sandy Creek, Bearpaw Mts, Hill Co., Montana, USA
Habit: To 3 cm
Reference: American Mineralogist: 38: 1169-1183
Localities: Recorded from at least 5 other localities in this region.
Photo: © JBS 2006. Burbankite from Jones Mill Quarry, Magnet Cove, Hot Spring Co., Arkansas, USA
Burckhardtite
Formula: Pb2(Fe3+,Mn3+)Te4+(AlSi3O10)O2(OH)2 · H2O
Localities: Bird Nest drift, Otto Mountain, Baker, San Bernardino Co., California, USA
Reef Mine (Tungsten Reef Mine; Exposed Reef Mine; Sitric Mine; Reef group of claims), Carr Canyon, Hartford District (Huachuca Mountains District), Huachuca Mts, Cochise Co., Arizona, USA
Photo: © Brent Thorne 2010. Burckhardtite from Bird Nest drift, Otto Mountain, Baker, San Bernardino Co., California, USA
Burkeite (TL)
Formula: Na6(CO3)(SO4)2
Type Locality: Searles Lake, San Bernardino Co., California, USA
Description: Occurs chiefly in the lower salt; some fine-grained in the upper salt; pods and nodules in the mixed layer.
Reference: Foshag, William Frederick (1935), Burkeite, a new mineral species from Searles Lake, California: American Mineralogist: 20: 50-56; Smith, George Irving & D.V. Haines (1964), Character and distribution of nonclastic minerals in the Searles Lake evaporite deposit, California: USGS Bulletin 1181-P: 50; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 283; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 340, 633; Mineralogical Magazine (1979): 43: 341.
Localities: Recorded from at least 11 other localities in this region.
Photo: © . Burkeite from Searles Lake, San Bernardino Co., California, USA
'Bursaite'
Formula: Pb5Bi4S11 (?)
Localities: Abril Mine (Dos Hermanos Mine; Herrera Mine), Cochise Stronghold, Middle Pass District, Dragoon Mts, Cochise Co., Arizona, USA
Reward prospects, Ravenswood District, Lander Co., Nevada, USA
'Buserite'
Formula: Na4Mn14O27 · 21H2O
Locality: Pinal Creek, Globe Placers, Globe, Globe Hills, Globe Hills District, Globe-Miami District, Gila Co., Arizona, USA
'Bushmanite'
Locality: Alum Point, Salt Lake Co., Utah, USA
Bustamite (TL)
Formula: CaMn2+(Si2O6)
Type Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Habit: Blocky prismatic
Colour: Pale to medium pink, rarely rich dark pink
Fluorescence: Magenta red (LW UV) (rare)
Reference: Palache (1935): 69; Mason, B.: Am. Min.: 60: 209-212 (1975); Dunn (1995):Pt3:438.
Localities: Recorded from at least 11 other localities in this region.
Photo: © 2003 John H. Betts. Bustamite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Butlerite (TL)
Formula: Fe3+(SO4)(OH) · 2H2O
Type Locality: United Verde Mine (The Big Hole; Big Hole property; Hull Mine; Hopewell tunnel; Patented claim 3480; Patented claim 2812; Patented claims 3348), Jerome, Verde District, Black Hills (Black Hill Range), Yavapai Co., Arizona, USA
Description: Thin crystalline coatings from burning pyritic ores.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 149; Lausen, C. (1928), Hydrous sulphates formed under fumerolic conditions at the United Verde mine, AmMin: 13: 203-229; Cesbron, F. (1964), Contribution à la minéralogie des sulfates de fer hydraté, Bull. Soc. Franc. Min. Crist: 87:125-143; Fanfani, L.A., et al (1971), The crystal structure of butlerite, Am.Min.: 56: 751-757; Galbraith, F.W. & Brennan (1959), Minerals of AZ: 66.
Localities: Recorded from at least 6 other localities in this region.
Photo: © Brent Thorne 2009. Butlerite from Dexter No. 7 Mine, Calf Mesa, San Rafael District, Emery Co., Utah, USA
Bütschliite (TL)
Formula: K2Ca(CO3)2
Type Locality: Coolin, Kaniksu National Forest, Bonner Co., Idaho, USA
Reference: Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
Localities: Recorded from at least 3 other localities in this region.
Buttgenbachite
Formula: Cu19(NO3)2(OH)32Cl4 · 2H2O
Localities: Reported from at least 8 localities in this region.
Cabriite
Formula: Pd2CuSn
Locality: Minnamax deposit (Babbitt deposit; Babbitt Lake deposit; Amax Underground Mine), Ely-Hoyt Lakes Area, St. Louis Co., Minnesota, USA
Cacoxenite
Formula: Fe3+24Al(PO4)17O6(OH)12 · 17H2O
Localities: Reported from at least 90 localities in this region.
Photo: © Donald Volkman 02/. Cacoxenite from Indian Mountain, Cherokee Co., Alabama, USA
Cadmium
Formula: Cd
Locality: Goldstrike Mine, Lynn District, Eureka Co., Nevada, USA
'Caesium-Biotite'
Locality: Custer Co., South Dakota, USA
Cafetite ?
Formula: (Ca,Mg)(Fe,Al)2Ti4O12 · 4H2O
Locality: Gordon Butte, Meagher Co., Montana, USA
Cahnite (TL)
Formula: Ca2[B(OH)4](AsO4)
Type Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Reference: Palache, C. (1935) American Mineralogist: 26: 126; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 387; Dunn, P.J. (1995): Part5: 660-663.
Photo: © JBS 2006. Cahnite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
'Calamine'
Localities: Reported from at least 58 localities in this region.
Photo: © M.Heintzelman. Calamine from Doughty Mine, Sunbury, Northumberland Co., Pennsylvania, USA
Calaverite (TL)
Formula: AuTe2
Type Locality: Stanislaus Mine, Carson Hill, Carson Hill District, Mother Lode Belt, Calaveras Co., California, USA
Reference: Genth F A (1868) Contributions to mineralogy - No. VII, The American Journal of Science and Arts: 312, 314; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 105, 109.
Localities: Recorded from at least 131 other localities in this region.
Photo: © Knut Eldjarn. Calaverite from Last Dollar Mine, Cripple Creek District, Teller Co., Colorado, USA
'Calcareous Tufa'
Localities: Reported from at least 7 localities in this region.
Photo: © Dragon Minerals. Calcareous Tufa from Mono Lake, Mono Co., California, USA
'Calcioancylite'
Locality: Gordon Butte, Meagher Co., Montana, USA
Photo: Calcioancylite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Calcioancylite-(Ce)
Formula: (Ca,Sr)Ce(CO3)2(OH) · H2O
Localities: Foote Lithium Co. Mine (Foote Mine), Kings Mountain District, Cleveland Co., North Carolina, USA
Manhattan (New York Co.), New York City, New York, USA
Gordon Butte, Meagher Co., Montana, USA
Photo: © 2004 JBS. Calcioancylite-(Ce) from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Calcioaravaipaite (TL)
Formula: PbCa2AlF9
Type Locality: Grand Reef Mine (Aravaipa Mine; Lead Jewel; Joe Rubal Mine; Vivian Mine; Calistoga Mining & Development Co. Mine; Bringham Silver and Lead Mine), Laurel Canyon, Grand Reef Mountain, Klondyke, Santa Teresa Mts, Aravaipa District, Graham Co., Arizona, USA
Description: Occurs in a quartz vug.
Reference: Kampf, A.R. & E.E. Foord (1996), Calcioaravaipaite a new mineral and associated lead fluoride minerals from the Grand Reef Mine, Graham County, Arizona. Mineralogical Record: 27: 293-300; Grant, Raymond W., Richard A. Bideaux & Sidney A. Williams (2006), Minerals Added to the Arizona List 1995 to 2005: 3.
Calciocatapleiite
Formula: CaZr(Si3O9) · 2H2O
Localities: Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Gordon Butte, Meagher Co., Montana, USA
Calciocopiapite ?
Formula: CaFe4(SO4)6(OH)2 · 10H2O
Locality: Sulphur Hole (Sulfur Hole; Sulphur pit), Mule Canyon, Yermo, Calico District (Daggett District), Calico Mts (Calico Hills), San Bernardino Co., California, USA
Photo: © 2007, JGW. Calciocopiapite from Sulphur Hole, Mule Canyon, Yermo, Calico District, Calico Mts, San Bernardino Co., California, USA
Calciodelrioite (TL)
Formula: Ca(VO3)2·4H2O
Type Locality: West Sunday Mine, Slick Rock District, San Miguel Co., Colorado, USA
Reference: Kampf, A.R., Marty, J., Nash, B.,Plášil, J., Kasatkin, A.V. and Škoda, R. (2012): Calciodelrioite, IMA 2012-031. CNMNC Newsletter No. 14, October 2012, page 1285; Mineralogical Magazine, 76, 1281-1288
Photo: © czechmin.cz. Calciodelrioite from West Sunday Mine, Slick Rock District, San Miguel Co., Colorado, USA
Calcioferrite
Formula: Ca2Fe3+2(PO4)3(OH) · 7H2O
Locality: Foote Lithium Co. Mine (Foote Mine), Kings Mountain District, Cleveland Co., North Carolina, USA
Photo: © Stephan Wolfsried. Calcioferrite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Calciohilairite (TL)
Formula: CaZr[SiO3]3 · 3H2O
Type Locality: Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Habit: blocky teragonal prisms
Colour: bluish to chalky white
Reference: BOGGS, R.C. (1988) Calciohilairite: CaZrSi3O9•3H2O The calcium analogue of hilairite from the Golden Horn batholith, Northern Cascades, Washington. American Mineralogist, 73, 1191 1194. Micro Probe Volume VI Number 8; Rocks and Minerals, 66:6, p. 457;
Photo: © 2003 R.O. Meyer. Calciohilairite from Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Calcio-Olivine
Formula: Ca2SiO4
Locality: Marble Canyon Mine (Texas Agricultural Aggregates Quarry), Apache Peak area, Culberson Co., Texas, USA
Calciosamarskite
Formula: (Ca,Fe3+,Y)2(Nb,Ta,Ti)2O8
Localities: Mitchell Co., North Carolina, USA
Hidden Valley Claims (Hidden Valley 4 Claim; Hidden Valley 1 Claim), McKinley Mountain Area, Wet Mountains Area, Custer Co., Colorado, USA
Photo: © 2010, JGW. Calciosamarskite from Mitchell Co., North Carolina, USA
Calcite
Formula: CaCO3
Localities: Reported from at least 9612 localities in this region.
Photo: © Rob Lavinsky. Calcite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA
Calcite var: Anthraconite
Localities: Norwood, Charlevoix Co., Michigan, USA
Squaw Bay, Alpena Co., Michigan, USA
Photo: Anthraconite from Squaw Bay, Alpena Co., Michigan, USA
Calcite var: Argentine
Localities: Northampton Quarry, Northampton, Hampshire Co., Massachusetts, USA
Franconia Iron Mine (Franconia Mine), Ore Hill, Sugar Hill, Grafton Co., New Hampshire, USA
Rutherford No. 3 pegmatite (Rutherford No. 2 pegmatite; Rutherford Mines; Rutherford No. 1 pegmatite), Amelia (Amelia Court House), Amelia Co., Virginia, USA
Challis, Bay Horse District, Custer Co., Idaho, USA
Williamsburg, Hampshire Co., Massachusetts, USA
Calcite var: Calcite Satin Spar
Localities: Saunders Ledge, Nahant, Essex Co., Massachusetts, USA
Devil's Den (Devil's Den lime pit), Newbury, Essex Co., Massachusetts, USA
Jensen Quarry (Oak Quarry), Jurupa, Jurupa Mts, Riverside Co., California, USA
Calcite var: Cobaltoan Calcite
Formula: (Ca,Co)CO3
Localities: Lucky Strike No. 2 mine, San Rafael District (San Rafael Swell), Emery Co., Utah, USA
Molly Hogan Group (Parco No. 4 & No. 5), Parco Mine Group, Thompsons District (S. E. Thomsons), Grand Co., Utah, USA
Pick's Delta Mine (Delta Mine; Pick's Mine), Delta, San Rafael District (San Rafael Swell), Emery Co., Utah, USA
Calcite var: Ferroan Calcite
Formula: (Ca,Fe)CO3
Localities: Reported from at least 15 localities in this region.
Calcite var: Glendonite
Localities: Reported from at least 6 localities in this region.
Photo: © . Glendonite from Grays Harbor Co., Washington, USA
Calcite var: Iceland Spar
Localities: Reported from at least 19 localities in this region.
Photo: Iceland Spar from Iceberg claim, Trampas, Picuris District, Taos Co., New Mexico, USA
Calcite var: Limestone Onyx
Localities: Reported from at least 36 localities in this region.
Photo: © Melissa Ward Carroll. Limestone Onyx from Lancaster Co., Pennsylvania, USA
Calcite var: Manganoan Calcite
Formula: (Ca,Mn)CO3
Localities: Reported from at least 76 localities in this region.
Photo: © 2001 John H. Betts. Manganoan Calcite from Idarado Mine, Telluride, Ouray District, San Miguel Co., Colorado, USA
Calcite var: Mg-rich Calcite
Formula: (Ca,Mg)CO3
Locality: Leoville meteorite (Leoville CV3 meteorite), Decatur Co., Kansas, USA
Photo: Mg-rich Calcite from Hamilton, Hancock Co., Illinois, USA
Calcite var: Sand-Calcite
Localities: Rattlesnake Butte, Jackson Co., South Dakota, USA
Unnamed Sand Calcite occurrence, Parkfield area, Cholame Hills, Monterey Co., California, USA
Cross Florida Barge Canal (Marjorie Harris Carr Cross Florida Greenway), Inglis, Citrus Co., Florida, USA
Photo: © 2009 Michael C. Roarke. Sand-Calcite from Rattlesnake Butte, Jackson Co., South Dakota, USA
Calcite var: Strontian Calcite
Formula: (Ca,Sr)CO3
Localities: Holston River Quarry, Dublin, Pulaski Co., Virginia, USA
Delhi, Merced Co., California, USA
Photo: © Geoffrey Krasnov. Strontian Calcite from Minerva No. 1 Mine Ozark-Mahoning Group, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
Calcite var: Travertine
Formula: CaCO3
Localities: Reported from at least 28 localities in this region.
Photo: © . Travertine from Sanpete Co., Utah, USA
Calcjarlite
Formula: Na(Ca,Sr)3Al3(OH)2F14
Locality: Cryolite Mine (65-2 pegmatite), St Peters Dome, Cheyenne District (St. Peters Dome District), El Paso Co., Colorado, USA
Photo: © Pavel M. Kartashov. Calcjarlite from Cryolite Mine, St Peters Dome, Cheyenne District, El Paso Co., Colorado, USA
Calcurmolite
Formula: (Ca,Na)2(UO2)3Mo2(O,OH)11 · nH2O
Locality: Paulding Uranium prospect, Watersmeet, Gogebic Co., Michigan, USA
Photo: © . Calcurmolite from Paulding Uranium prospect, Watersmeet, Gogebic Co., Michigan, USA
Calderónite
Formula: Pb2Fe3+(VO4)2(OH)
Localities: Reported from at least 7 localities in this region.
Photo: © Stephan Wolfsried. Calderónite from Magnitude Mine, Rosebud District, Grouse Creek Mts, Box Elder Co., Utah, USA
Caledonite
Formula: Pb5Cu2(SO4)3(CO3)(OH)6
Localities: Reported from at least 98 localities in this region.
Photo: © Michael Cline. Caledonite from Reward Mine, Manzanar Station area, Inyo Mts, Inyo Co., California, USA
Calkinsite-(Ce) (TL)
Formula: (Ce,La)2(CO3)3 · 4H2O
Type Locality: Vermiculite prospect No. 6, Big Sandy Creek, Bearpaw Mts, Hill Co., Montana, USA
Habit: Less than 1mm
Reference: American Mineralogist: 38: 1169-1183.
Localities: Recorded from at least 1 other locality in this region.
Photo: Calkinsite-(Ce) from Vermiculite prospect No. 6, Big Sandy Creek, Bearpaw Mts, Hill Co., Montana, USA
Callaghanite (TL)
Formula: Cu2Mg2(CO3)(OH)6 · 2H2O
Type Locality: Premier Chemicals Mine (Gabbs Magnesite-Brucite Mine; Basic Refractories Mine; Basic Mine), Gabbs District, Nye Co., Nevada, USA
Reference: NBMG Spec. Pub. 31 Minerals of Nevada
Localities: Recorded from at least 2 other localities in this region.
Photo: © 2009 ROM. Callaghanite from Premier Chemicals Mine, Gabbs District, Nye Co., Nevada, USA
Calomel
Formula: (Hg+2)Cl2
Localities: Reported from at least 47 localities in this region.
Photo: © JBS 2006. Calomel from Terlingua, Terlingua District, Brewster Co., Texas, USA
Calumetite (TL)
Formula: Cu(OH,Cl)2 · 2H2O
Type Locality: Centennial Mine, Centennial, Houghton Co., Michigan, USA
Reference: Williams, S.A. (1963): Anthonyite and calumetite, two new minerals from the Michigan Copper District. American Mineralogist. 48, 614-619; Rocks & Min.:58:109.
Localities: Recorded from at least 4 other localities in this region.
Photo: © Brent Thorne. Calumetite from Centennial No. 6 Shaft, Centennial Mine, Centennial, Houghton Co., Michigan, USA
Cameronite (TL)
Formula: AgCu7Te10
Type Locality: Good Hope Mine (Mammoth Good Hope Mine; Mammoth-Good Hope Mine; Mammoth Chimney Mine), Vulcan, Vulcan District (Cebolla District; Domingo District), Gunnison Co., Colorado, USA
Reference: Can.Min.(1986) 24, 379-384; "Minerals of Colorado, updated & revised", pp. 127-128 , by Eckel, Edwin B., 1997
Photo: © Brent Thorne 2009. Cameronite from Good Hope Mine, Vulcan, Vulcan District, Gunnison Co., Colorado, USA
'Campbellite'
Locality: Campbell Mine (Campbell shaft), Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Photo: © Brander Robinson. Campbellite from Campbell Mine, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Campigliaite
Formula: Mn2+Cu4(SO4)2(OH)6 · 4H2O
Localities: Richfield, Sevier Co., Utah, USA
Deer Trail Mine, Mount Baldy District, Cottonwood Creek, Tushar Mts, Piute Co., Utah, USA
Photo: © Brent Thorne. Campigliaite from Deer Trail Mine, Mount Baldy District, Cottonwood Creek, Tushar Mts, Piute Co., Utah, USA
Canaphite (TL)
Formula: Na2Ca(P2O7) · 4H2O
Type Locality: Great Notch Corp. Quarry, Great Notch, Little Falls Township, Passaic Co., New Jersey, USA
Reference: Peacor, et al (1985), Steriss, et al (1987)
Photo: © C. Stefano '11. Canaphite from Great Notch Corp. Quarry, Great Notch, Little Falls Township, Passaic Co., New Jersey, USA
Canavesite
Formula: Mg2(HBO3)(CO3) · 5H2O
Locality: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Cancrinite
Formula: (Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Localities: Reported from at least 32 localities in this region.
Photo: © Rob Lavinsky. Cancrinite from Dennis Hill locality, Litchfield, Kennebec Co., Maine, USA
Canfieldite
Formula: Ag8SnS6
Localities: Reported from at least 7 localities in this region.
Photo: © M. Burkhardt. Canfieldite from Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Cannizzarite
Formula: Pb4Bi6S13
Localities: Pinos Altos Mine, Pinos Altos District, Grant Co., New Mexico, USA
Landsman Camp (Landsman group), Aravaipa, Santa Teresa Mts, Aravaipa District, Graham Co., Arizona, USA
Cannonite (TL)
Formula: Bi2(SO4)O(OH)2
Type Locality: Tunnel Extension No. 2 Mine, Ohio District, Bullion Canyon, Tushar Mts, Piute Co., Utah, USA
Reference: Mineralogical Magazine: 56: 605-609.
Photo: © 2004 ROM. Cannonite from Tunnel Extension No. 2 Mine, Ohio District, Bullion Canyon, Tushar Mts, Piute Co., Utah, USA
Carboborite
Formula: Ca2Mg[B(OH)4]2(CO3)2 · 4H2O
Localities: Death Valley, Inyo Co., California, USA
Furnace Creek District (Furnace Creek Borate District; Death Valley Area Borate Deposits; Ryan area), Inyo Co., California, USA
Carbonatecyanotrichite
Formula: Cu4Al2(CO3,SO4)(OH)12 · 2H2O
Localities: Reported from at least 19 localities in this region.
Photo: © Alan Goldstein. Carbonatecyanotrichite from Sacramento pit, Sacramento Hill, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
'Carbon Dioxide'
Localities: Garnet Mountain, Lost Basin District, Lost Basin Mts (Lost Basin Range), Mohave Co., Arizona, USA
Farnham Dome, Carbon Co., Utah, USA
Gordon Creek, Carbon Co., Utah, USA
Harley Dome, Grand Co., Utah, USA
'Carbonite (of Heinrich)'
Localities: Edgehill Mines, Richmond (City), Virginia, USA
New Mexico, USA
Colorado, USA
Carlinite (TL)
Formula: Tl2S
Type Locality: Carlin Gold mine, Elko, Lynn District, Eureka Co., Nevada, USA
Habit: 0.5 mm grains
Description: East pit
Reference: [Amer.Min.(1975) 60, 559-565; Nickel & Nichols, 1991, p34 - "Mineral Reference Manual"]
Localities: Recorded from at least 1 other locality in this region.
Carlsbergite
Formula: CrN
Localities: Reported from at least 7 localities in this region.
Photo: © Thomas Witzke. Carlsbergite from Kenton County meteorite, Kenton Co., Kentucky, USA
Carmichaelite (TL)
Formula: (Ti,Cr,Fe)[O2-x(OH)x]
Type Locality: Garnet Ridge, Dinnehotso, Monument Valley, Navajo Indian Reservation, Apache Co., Arizona, USA
Description: Inclusions in Pyrope
Reference: Wang,L., R.C. Rouse, E.J. Essene, D.R. Peacor, and Y. Zhang (2000) Carmichaelite, a new hydroxyl-bearing titanite from Garnet Ridge, Arizona. American Mineralogist: 85: 792-800; Min.Rec.: 32: 211; Grant, Raymond W., Richard A. Bideaux & Sidney A. Williams (2006), Minerals Added to the Arizona List 1995 to 2005: 3.
Carminite
Formula: PbFe3+2(AsO4)2(OH)2
Localities: Reported from at least 39 localities in this region.
Photo: © 2004 ROM. Carminite from 150 level, Gold Hill Mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
Carnallite
Formula: KMgCl3 · 6H2O
Localities: Reported from at least 39 localities in this region.
Photo: © 2007, JGW. Carnallite from U. S. Potash Co. Mine, Carlsbad Potash District, Eddy Co., New Mexico, USA
Carnotite (TL)
Formula: K2(UO2)2(VO4)2 · 3H2O
Type Locality: Rajah Mine, Uravan District, Montrose Co., Colorado, USA
Reference: "Minerals of Colorado, updated & revised", p. 133, by Eckel, Edwin B., 1997.
Localities: Recorded from at least 1081 other localities in this region.
Photo: © Stephan Wolfsried. Carnotite from Anderson Mine, Date Creek Basin, Yavapai Co., Arizona, USA
Carpathite
Formula: C24H12
Localities: 4th of July Mine, Flint group (Boston; Fourth of July; Monterey; Andy Johnson claim; Red Rock; Clear Creek), Hernandez, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Picacho Mine (Picachos Mine; Los Picachos Mine; Picahotes Mine; Benta Mine; Hernandez Mine; Ramirez Mine; Bonanza Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Leza pit No. 1, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © Antonio Borrelli. Carpathite from Picacho Mine, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Carpholite
Formula: Mn2+Al2(Si2O6)(OH)4
Localities: Reported from at least 6 localities in this region.
Photo: © Wm. C. van Laer. Carpholite from Glens Peak prospects, Glens Peak area, Elmore Co., Idaho, USA
Carrollite (TL)
Formula: Cu(Co,Ni)2S4
Type Locality: Patapsco mine (Finksburg Mine; Orchard Mine), Patapsco Mines, Finksburg, Sykesville, Carroll Co., Maryland, USA
Reference: Faber (1852); Dana 7:I:264; Min. Mag.:43:733 (1980).
Localities: Recorded from at least 15 other localities in this region.
Photo: © Jasun McAvoy. Carrollite from Patapsco mine, Patapsco Mines, Finksburg, Sykesville, Carroll Co., Maryland, USA
Caryopilite
Formula: (Mn,Mg)3(Si2O5)(OH)4
Localities: Reported from at least 10 localities in this region.
Photo: Caryopilite from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Cassiterite
Formula: SnO2
Localities: Reported from at least 817 localities in this region.
Photo: Cassiterite from Bennett Quarry, Buckfield, Oxford Co., Maine, USA
Cassiterite var: Wood Tin
Localities: Reported from at least 7 localities in this region.
Photo: Wood Tin from Nugget Gulch, Taylor Creek Tin District, Sierra Co., New Mexico, USA
'Castaingite'
Formula: CuMo2S5
Locality: Viburnum Trend District, Reynolds Co., Missouri, USA
Caswellsilverite (TL)
Formula: NaCrS2
Type Locality: Norton County meteorite, Norton Co., Kansas, USA
Reference: Am Min 67:132-136
Localities: Recorded from at least 1 other locality in this region.
Catapleiite
Formula: Na2Zr(Si3O9) · 2H2O
Localities: Reported from at least 11 localities in this region.
Photo: © JBS 2006. Catapleiite from Granite Mountain Quarry #1, Granite Mountain Area, Little Rock, Pulaski Co., Arkansas, USA
'Cathedral Quartz'
Locality: Carmelita Mine (Big Spring mine; Blue Gem claim; Crest Gem mine; Elinor deposit; Elinor mine; Estudillo mine; French Pete mine; MS 6130; Peter Cabat mine), Chihuahua Valley, Warner Springs District, San Diego Co., California, USA
'Catlinite'
Localities: Reported from at least 8 localities in this region.
'Cat's Eye'
Localities: Cumberland, Providence Co., Rhode Island, USA
York, York Co., Pennsylvania, USA
Cattierite
Formula: CoS2
Localities: Bald Knob deposit (Primary ore body; Crouse Knob deposit), Bald Knob, Sparta, Alleghany Co., North Carolina, USA
Fletcher Mine, Centerville, Viburnum Trend District, Reynolds Co., Missouri, USA
Copper Age Mine, La Plata District (California District), La Plata Co., Colorado, USA
Cavansite (TL)
Formula: Ca(VO)Si4O10 · 4H2O
Type Locality: Owyhee Dam, Lake Owyhee State Park, Malheur Co., Oregon, USA
Reference: Progr.Ann.Meeting Geol.Soc.Amer.(1967) p. 211
Localities: Recorded from at least 1 other locality in this region.
Photo: © 2002 John H. Betts. Cavansite from Owyhee Dam, Lake Owyhee State Park, Malheur Co., Oregon, USA
'Cebollite' (TL)
Formula: Ca5Al2(SiO4)3(OH)4
Type Locality: Iron Hill (Iron Hill carbonatite complex), White Earth District (Powderhorn District), Gunnison Co., Colorado, USA
Reference: "Minerals of Colorado, updated & revised", p. 135, by Eckel, Edwin B., 1997; USGS ProfessionaL Paper 197A
Localities: Recorded from at least 1 other locality in this region.
Čechite
Formula: Pb(Fe2+,Mn2+)(VO4)(OH)
Localities: Silver Coin Mine, Valmy, Iron Point District, Humboldt Co., Nevada, USA
Magnitude Mine (Frank Edison Mine), Rosebud District, Grouse Creek Mts, Box Elder Co., Utah, USA (more information)
Čejkaite
Formula: Na4(UO2)(CO3)3
Locality: Apex Mine (Rundberg mine; Early Day mine), Reese River District, Lander Co., Nevada, USA
Celadonite
Formula: K(Mg,Fe2+)Fe3+(Si4O10)(OH)2
Localities: Reported from at least 64 localities in this region.
Photo: © Martins da Pedra. Celadonite from Treasure Falls locality, Wolf Creek Pass, San Juan Mts, Mineral Co., Colorado, USA
Celestine (TL)
Formula: SrSO4
Type Locality: Bell's Mill, Bellwood, Blair Co., Pennsylvania, USA
Habit: fiberous habit
Colour: pale greyish blue
Description: Occurs in thin seams of a pale greyish blue and as parallel-fibrous veinlets.
Reference: Second Geological Survey 1874, Preliminary Report on the Mineralogy of Pennsylvania; F. A. Genth
Localities: Recorded from at least 436 other localities in this region.
Photo: © Alan Goldstein. Celestine from Scofield Quarry, Maybee, Monroe Co., Michigan, USA
Celestine var: Barian Celestine
Formula: (Sr,Ba)SO4
Localities: Socorro Co., New Mexico, USA
Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA
Sierra Oscura, Socorro Co., New Mexico, USA
Birthday Mine (Birthday claim; Birthday area), Mountain Pass, Mountain Pass District, Mescal Range, San Bernardino Co., California, USA
Mountain Pass Mine (Mountain Pass deposit; Bastnaesite deposit; Bastnäsite deposit; Mountain Pass carbonatite), Mountain Pass, Clark Mountain Sub-District, Clark Mts (Clark Mountain Range), Ivanpah District (Copper World District), San Bernardino Co., California, USA ? (more information)
Photo: © Alan Goldstein. Barian Celestine from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA
Celestine var: Calciocelestine
Formula: (Sr,Ca)SO4
Localities: Socorro Co., New Mexico, USA
Sierra Oscura, Socorro Co., New Mexico, USA
Celsian
Formula: BaAl2Si2O8
Localities: Reported from at least 19 localities in this region.
Photo: © 2007 Peter Cristofono. Celsian from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Cerchiaraite-(Al) (TL)
Formula: Ba4Al4O3(OH)3(Si4O12)[Si2O3(OH)4]Cl
Type Locality: Esquire No. 1 claim, Rush Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Reference: Kampf, A.R., Roberts, A.C., Venance, K.E., Dunning, G.E. and Walstrom, R.E. (2012): Cerchiaraite-(Al), IMA 2012-011. CNMNC Newsletter No. 13, June 2012, page 815; Mineralogical Magazine, 76, 807-817
Localities: Recorded from at least 2 other localities in this region.
Cerchiaraite-(Fe) (TL)
Formula: Ba4Fe3+4O3(OH)3(Si4O12)[Si2O3(OH)4]Cl
Type Locality: Esquire No. 8 claim (Lander's Gillespite locality), Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Reference: Kampf, A.R., Roberts, A.C.,Venance, K.E., Carbone, C., Dunning, G.E. and Walstrom, R.E. (2012): Cerchiaraite-(Fe), IMA 2012-012. CNMNC Newsletter No. 13, June 2012, page 815; Mineralogical Magazine, 76, 807-817.
Localities: Recorded from at least 1 other locality in this region.
Cerianite-(Ce)
Formula: (Ce4+,Th)O2
Localities: Reported from at least 12 localities in this region.
Photo: © Pavel M. Kartashov. Cerianite-(Ce) from St Peters Dome, Cheyenne District, El Paso Co., Colorado, USA
Cerite-(Ce)
Formula: (Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3
Localities: Reported from at least 11 localities in this region.
Černýite (TL)
Formula: Cu2(Cd,Zn,Fe)SnS4
Type Locality: Hugo Mine, Keystone, Keystone District, Pennington Co., South Dakota, USA
Reference: Can.Min.(1978) 16, 139-146; Am Min 64:653
Cerussite
Formula: PbCO3
Localities: Reported from at least 1858 localities in this region.
Photo: © Scott Whittemore. Cerussite from Manhan Mines, Easthampton, Hampshire Co., Massachusetts, USA
Cerussite var: Argentiferous Cerussite
Localities: Reported from at least 16 localities in this region.
Cervantite
Formula: Sb3+Sb5+O4
Localities: Reported from at least 65 localities in this region.
Photo: © 2002 John H. Betts. Cervantite from Wells Fargo Mine, Huckleberry Mountain, Deer Trail & Cedar Canyon Districts, Huckleberry Range, Stevens Co., Washington, USA
Cervelleite
Formula: Ag4TeS
Localities: Grey Eagle Mine, Ward District, Boulder Co., Colorado, USA
Empire Mine, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Otto Mountain, Baker, San Bernardino Co., California, USA
Mayflower Prospect (West Mayflower Mine), Norwegian District (Whitehall District), Madison Co., Montana, USA ? (more information)
Photo: © . Cervelleite from Boulder Co., Colorado, USA
Cesàrolite
Formula: Pb(Mn4+)3O6(OH)2
Localities: Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Warren District, Mule Mts, Cochise Co., Arizona, USA
Maricopa Co., Arizona, USA
Cesbronite
Formula: Cu5(TeO3)2(OH)6 · 2H2O
Localities: Centennial Eureka Mine (Blue Rock), Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Photo: © Brent Thorne 2008. Cesbronite from Centennial Eureka Mine, Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA
'Chabazite'
Localities: Reported from at least 367 localities in this region.
Photo: © Frank A. Imbriacco III. Chabazite from Upper New Street Quarry, Paterson, Passaic Co., New Jersey, USA
'Chabazite var: Phacolite'
Localities: Reported from at least 6 localities in this region.
Photo: © JSS. Phacolite from Burnt Cabin Creek, Spray, Wheeler Co., Oregon, USA
Chabazite-Ca
Formula: (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Localities: Reported from at least 32 localities in this region.
Photo: © 2001 John H. Betts. Chabazite-Ca from Upper New Street Quarry, Paterson, Passaic Co., New Jersey, USA
Chabazite-Ca var: Haydenite (TL)
Type Locality: Jones Falls Quarries, Baltimore City, Maryland, USA
Reference: Paker Cleaveland (1822)
Chabazite-K
Formula: (K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Localities: Interstate 290/Interstate 495 interchange road cuts, Marlborough, Middlesex Co., Massachusetts, USA
New York City, New York, USA
Photo: © Van King. Chabazite-K from Interstate 290/Interstate 495 interchange road cuts, Marlborough, Middlesex Co., Massachusetts, USA
Chabazite-Na
Formula: (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Localities: Boron, Kramer District, Kern Co., California, USA
U.S. Borax open pit (Boron pit), U.S. Borax Mine (Pacific West Coast Borax; Pacific Coast Borax Co.; Boron Mine; U.S. Borax and Chemical Corp.; Kramer Mine; Baker Mine), Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
Horseshoe Dam area (Horseshoe Dam Clinoptilolite occurrence), Maricopa Co., Arizona, USA
Red Mountain, San Franciscan volcanic field (San Francisco Peaks; San Francisco Mts), Coconino Co., Arizona, USA
Photo: © Dick Dionne. Chabazite-Na from U.S. Borax open pit, U.S. Borax Mine, Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
Chaidamuite
Formula: ZnFe3+(SO4)2(OH) · 4H2O
Locality: Getchell Mine (North Pit; Center pit; South pit), Adam Peak, Potosi District, Osgood Mts, Humboldt Co., Nevada, USA
Photo: © 2007, JGW. Chaidamuite from Getchell Mine, Adam Peak, Potosi District, Osgood Mts, Humboldt Co., Nevada, USA
Chalcanthite
Formula: CuSO4 · 5H2O
Localities: Reported from at least 353 localities in this region.
Photo: © 2003 John H. Betts. Chalcanthite from Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Chalcoalumite (TL)
Formula: CuAl4(SO4)(OH)12 · 3H2O
Type Locality: Copper Queen Mine (Halero Mine), Queen Hill, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 580.
Localities: Recorded from at least 13 other localities in this region.
Photo: Chalcoalumite from Copper Queen Mine, Queen Hill, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Chalcocite
Formula: Cu2S
Localities: Reported from at least 2221 localities in this region.
Photo: © Jeff Scovil. Chalcocite from Bristol Copper Mine, Bristol, Hartford Co., Connecticut, USA
Chalcocite var: Argentiferous Chalcocite
Localities: Yellow Bird Mine, Lincoln Mine group, Stevens Mountain, Papago District (Sierrita District), Sierrita Mts, Pima Co., Arizona, USA
Providence Mine, Lincoln Mine group, Stevens Mountain, Papago District (Sierrita District), Sierrita Mts, Pima Co., Arizona, USA
Daisy Creek prospect, Thompson Falls, Sanders Co., Montana, USA
Cook Co., Minnesota, USA
Chalcocite var: Ducktownite
Localities: Chino Mine (Santa Rita Pit; Santa Rita Mine), Santa Rita, Santa Rita District, Grant Co., New Mexico, USA
Ducktown District, Polk Co., Tennessee, USA
Photo: © 2001 John H. Betts. Ducktownite from Chino Mine, Santa Rita, Santa Rita District, Grant Co., New Mexico, USA
Chalcocyanite
Formula: CuSO4
Locality: Ward District, White Pine Co., Nevada, USA
'Chalcodite'
Formula: K(Fe3+,Mg,Fe2+)8(Si,Al)12(O,OH)27
Locality: Sterling Mine, Antwerp, Jefferson Co., New York, USA
Photo: © C. Stefano '08. Chalcodite from Sterling Mine, Antwerp, Jefferson Co., New York, USA
Chalcomenite
Formula: CuSeO3 · 2H2O
Localities: Reported from at least 7 localities in this region.
Photo: © Brent Thorne. Chalcomenite from Suncup No. 2, Uravan District, San Miguel Co., Colorado, USA
Chalconatronite
Formula: Na2Cu(CO3)2 · 3H2O
Localities: White Pine Mine, White Pine, Ontonagon Co., Michigan, USA
Centennial Mine, Centennial, Houghton Co., Michigan, USA
Deremo Mine (Deremo - Snyder Mine; Deremo Shafts; Snyder Shaft), Slick Rock District, San Miguel Co., Colorado, USA
Centennial No. 2 Shaft, Centennial Mine, Centennial, Houghton Co., Michigan, USA
Fairfax Co., Virginia, USA ? (more information)
Photo: Chalconatronite from Deremo Mine, Slick Rock District, San Miguel Co., Colorado, USA
Chalcophanite (TL)
Formula: (Zn,Fe,Mn)Mn3O7 · 3H2O
Type Locality: Passaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Description: Occurs in weathered ore zones within the folds of the Sterling Hill orebody.
Reference: Palache(1935):52; Baum( J.L.: The Sterling Hill mud zone: The Picking Table:3(2):8-10 (1962); Dunn(1995):Pt4:587.
Localities: Recorded from at least 58 other localities in this region.
Photo: © 2002 John H. Betts. Chalcophanite from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Chalcophyllite
Formula: Cu18Al2(SO4)3(AsO4)3(OH)27 · 33H2O
Localities: Reported from at least 21 localities in this region.
Photo: © Brent Thorne. Chalcophyllite from Mammoth Mine, Mammoth, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 10629 localities in this region.
Photo: © 2002 John H. Betts. Chalcopyrite from French Creek Mines, St. Peters, Warwick Township, Chester Co., Pennsylvania, USA
Chalcopyrite var: Auriferous Chalcopyrite
Localities: Reported from at least 7 localities in this region.
Chalcopyrite var: Blister Copper
Localities: Bristol Copper Mine, Bristol, Hartford Co., Connecticut, USA
Laurel Hill (Snake Hill; Penitentiary Quarry), Secaucus, Hudson Co., New Jersey, USA
Gap Mine (Gap Nickel Mine), Gap, Bart Township, Lancaster Co., Pennsylvania, USA
Iron Mountain Mine (Number 8; Confidence; Old Mine), Iron Mountain, Iron Mountain [town], West Shasta Copper - Zinc District, Klamath Mts, Shasta Co., California, USA
Photo: © Rob Lavinsky. Blister Copper from Bristol Copper Mine, Bristol, Hartford Co., Connecticut, USA
Chalcosiderite
Formula: Cu(Fe3+,Al)6(PO4)4(OH)8 · 4H2O
Localities: Reported from at least 19 localities in this region.
Photo: © Saul Krotki 2006. Chalcosiderite from Silver Coin Mine, Valmy, Iron Point District, Humboldt Co., Nevada, USA
'Chalcosiderite-Turquoise Series'
Locality: Lynch Station, James River-Roanoke River Manganese District, Campbell Co., Virginia, USA
Photo: © SMS 2010. Chalcosiderite-Turquoise Series from Lynch Station, James River-Roanoke River Manganese District, Campbell Co., Virginia, USA
Chalcostibite
Formula: CuSbS2
Localities: Reported from at least 7 localities in this region.
'Chalk'
Localities: Chipley, Washington Co., Florida, USA
Bandera Co., Texas, USA
Smoky Hill River locality, Ellis Co., Kansas, USA
Logan Co., Kansas, USA
Chalk Mine, Chalk Mine Hollow, Tishomingo Co., Mississippi, USA
Chambersite (TL)
Formula: Mn2+3(B7O13)Cl
Type Locality: Barbers Hill Salt Dome (Barbers Hill), Mont Belvieu, Chambers Co., Texas, USA
Reference: American Mineralogist (1962): 47: 665-671.
Localities: Recorded from at least 3 other localities in this region.
Photo: © Elmar Lackner. Chambersite from Venice Salt dome, Plaquemines Parish, Louisiana, USA
Chamosite
Formula: (Fe2+,Mg)5Al(AlSi3O10)(OH)8
Localities: Reported from at least 117 localities in this region.
Photo: © Saul Krotki 2004. Chamosite from Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Chamosite var: Corundophilite
Formula: (Mg,Fe,Al)6(Si,Al)4O10(OH)8
Locality: Chester Emery Mines, Chester, Hampden Co., Massachusetts, USA
Photo: © 2010, JGW. Corundophilite from Wright Mine, Chester Emery Mines, Chester, Hampden Co., Massachusetts, USA
Chamosite var: Daphnite
Formula: (Fe,Mg)5Al(Si,Al)4O10(OH)8
Localities: Antwerp, Jefferson Co., New York, USA
Number 1 Slate Quarry, Arvonia, Buckingham Co., Virginia, USA
Lower Maple Mountain Manganese Prospect, TD R2 WELS, Aroostook Co., Maine, USA
Upper Maple Mountain manganese prospect, TD R2 WELS, Aroostook Co., Maine, USA
Hovey Mountain Manganese Prospect, T3 R9 WELS, Aroostook Co., Maine, USA
Chamosite var: Thuringite
Formula: (Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
Localities: Reported from at least 22 localities in this region.
'Chamosite-Clinochlore Series'
Localities: Reported from at least 13 localities in this region.
Photo: © 2011 Peter Cristofono. Chamosite-Clinochlore Series from Waterford, Oxford Co., Maine, USA
Changbaiite
Formula: PbNb2O6
Locality: Sierra Blanca Peaks, Hudspeth Co., Texas, USA
Photo: © 2007, JGW. Changbaiite from Sierra Blanca Peaks, Hudspeth Co., Texas, USA
Chapmanite
Formula: Fe3+2Sb3+(SiO4)2(OH)
Localities: McDermitt Mine (Cordero Mine; Old Cordero Mine), Opalite District, Humboldt Co., Nevada, USA
Candelaria Silver Mine, Candelaria District, Mineral Co., Nevada, USA
Photo: © rocks4u.com. Chapmanite from McDermitt Mine, Opalite District, Humboldt Co., Nevada, USA
'Charcoal'
Formula: C
Localities: Silver Reef District (Harrisburg District), Leeds, Washington Co., Utah, USA
Bassick Mine (Claims: Queen Victoria; Triangle; Nemeha; William; Augusta; Maine; Georgia), Rosita District, Wet Mountains Area, Custer Co., Colorado, USA
Oregon, USA
Charlesite (TL)
Formula: Ca6(Al,Si)2(SO4)2[B(OH)4](OH,O)12 · 26H2O
Type Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Description: Was initially described as ettringite.
Reference: Dunn, et al: Am. Min.:68:1033-1037 (1983); Dunn (1995):Pt5:631.
Localities: Recorded from at least 2 other localities in this region.
Photo: © Van King. Charlesite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Chatkalite
Formula: Cu6FeSn2S8
Locality: McCoy mine (McCoy-Cove mine; Cove mine), McCoy District, Lander Co., Nevada, USA
Chayesite (TL)
Formula: K(Mg,Fe)4FeSi12O30
Type Locality: Moon Canyon, Woodland, Summit Co., Utah, USA
Reference: AM 74 (1989), 1368; HB2/1 (1995); Mitt. Abt. Miner. Landesmuseum Joanneum 60/61 (1996), 77
Chenevixite
Formula: Cu2Fe3+2(AsO4)2(OH)4
Localities: Reported from at least 17 localities in this region.
Photo: © Brent Thorne. Chenevixite from Patagonia District, Patagonia Mts, Santa Cruz Co., Arizona, USA
Chenguodaite
Formula: Ag9Fe3+Te2S4
Locality: Harvard Mine (Harvard Mine group; McCann claim; Mooney claim; Pacific claim; Vulture claim; Trio claim; Sobrante claim), Jamestown Mine (Jamestown group), Jamestown, Jamestown District, Mother Lode Belt, Tuolumne Co., California, USA
Cheralite
Formula: (Ca,Ce)(Th,Ce)(PO4)2
Localities: Reported from at least 7 localities in this region.
Photo: © . Cheralite from Platt Pegmatite Mine, Big Creek pegmatite District, Carbon Co., Wyoming, USA
'Cheralite-(Ce)'
Localities: "Rotten granite" quarries, Wausau pluton, Marathon Co., Wisconsin, USA
Stettin pluton, Marathon Co., Wisconsin, USA
Wimmer No. 3 pit, "Rotten granite" quarries, Wausau pluton, Marathon Co., Wisconsin, USA
Schill Quarry, Vesper, Wood Co., Wisconsin, USA ? (more information)
Cherepanovite
Formula: RhAs
Locality: Goodnews Bay, Bethel Borough, Alaska, USA
Chernikovite
Formula: (H3O)2(UO2)2(PO4)2 · 6H2O
Localities: Jackpile Mine (Jackpile-Paguate), Laguna District, Cibola Co., New Mexico, USA
Paguate (south) deposit, Laguna District, Cibola Co., New Mexico, USA
Woodrow Mine (Woodrow breccia pipe), Laguna District, Cibola Co., New Mexico, USA
Werner No. 4 pit, Mayfield, Fulton Co., New York, USA
'Chernovite-(Ce)'
Formula: (Ce,Y)(AsO4)
Localities: Taylor Creek Tin District (Black Range Tin District), Sierra Co., New Mexico, USA
Beryllium Virgin claim, Paramount Canyon, Sierra Co., New Mexico, USA
Chernovite-(Y)
Formula: Y(AsO4)
Localities: Taylor Creek Tin District (Black Range Tin District), Sierra Co., New Mexico, USA
Squaw Creek Mine, Taylor Creek Tin District (Black Range Tin District), Sierra Co., New Mexico, USA
Beryllium Virgin claim, Paramount Canyon, Sierra Co., New Mexico, USA
Photo: © Ł Kruszewski 2007. Chernovite-(Y) from Beryllium Virgin claim, Paramount Canyon, Sierra Co., New Mexico, USA
'Chert'
Localities: Reported from at least 1189 localities in this region.
Photo: © 2006 Peter Cristofono. Chert from Owingsville, Bath Co., Kentucky, USA
'Chert var: Novaculite'
Locality: Magnet Cove, Hot Spring Co., Arkansas, USA
Photo: Novaculite from Magnet Cove, Hot Spring Co., Arkansas, USA
'Chert var: Taconite'
Localities: Biwabik, Mesabi Range, St. Louis Co., Minnesota, USA
Mahoning-Hull-Rust Mine (Hull-Rust-Mahoning Mine; Hull-Rust Mine), Hibbing, Mesabi Range, St. Louis Co., Minnesota, USA
Northshore Mine (Peter Mitchell Mine; Reserve Mine; Babbitt Mine), Babbitt, Mesabi Range, St. Louis Co., Minnesota, USA
Marquette Co., Michigan, USA
Humboldt Mine (Edwards Mine), Humboldt Township, Marquette iron range, Marquette Co., Michigan, USA
Photo: © Dan R. Lynch. Taconite from Mesabi Range, St. Louis Co., Minnesota, USA
Chervetite
Formula: Pb2(V2O7)
Localities: Ruth mine, Goodsprings District, Clark Co., Nevada, USA
Huron River Uranium prospect (Unnamed V prospect; MRDS - 10171055), Huron River, Baraga Co., Michigan, USA
Chesterite (TL)
Formula: (Mg,Fe)17Si20O54(OH)6
Type Locality: Carlton Quarry (Carleton Talc Mine), Chester, Windsor Co., Vermont, USA
Reference: Rocks & Min. Vol. 71, (1996)
Localities: Recorded from at least 1 other locality in this region.
Photo: Chesterite from Carlton Quarry, Chester, Windsor Co., Vermont, USA
Chestermanite (TL)
Formula: Mg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2
Type Locality: Unnamed Skarn occurrence [1], Lakeshore, Fresno Co., California, USA
Reference: Canadian Minelalogist Vol.26, pp. 911-916 (1988)
Photo: © 2008, JGW. Chestermanite from Unnamed Skarn occurrence [1], Lakeshore, Fresno Co., California, USA
'Chevkinite'
Formula: (Ce,Ca,Th)4(Fe,Mn)2(Ti,Fe)3[Si2O7]2O8
Localities: Reported from at least 37 localities in this region.
Chevkinite-(Ce)
Formula: (Ce,La,Ca,Th)4(Fe2+,Mg)(Fe2+,Ti,Fe3+)2(Ti,Fe3+)2(Si2O7)2O8
Localities: Reported from at least 23 localities in this region.
Photo: © 2004 ROM. Chevkinite-(Ce) from Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Childrenite
Formula: (Fe2+,Mn2+)Al(PO4)(OH)2 · H2O
Localities: Reported from at least 19 localities in this region.
Photo: © Karl Volkman03/05. Childrenite from Palermo No. 1 Mine, Groton, Grafton Co., New Hampshire, USA
'Childrenite-Eosphorite Series'
Localities: Palermo No. 2 mine, Groton, Grafton Co., New Hampshire, USA
Chickering Mine, Walpole, Cheshire Co., New Hampshire, USA
Photo: © Dick Dionne. Childrenite-Eosphorite Series from Palermo No. 1 Mine, Groton, Grafton Co., New Hampshire, USA
Chiolite
Formula: Na5Al3F14
Locality: Morefield Mine (Morefield Pegmatite), Winterham, Amelia Co., Virginia, USA
Photo: © Antonio Borrelli. Chiolite from Morefield Mine, Winterham, Amelia Co., Virginia, USA
Chladniite (TL)
Formula: {Ca}{Na8}{Ca4Na4}{(Mg,Fe2+)43}(PO4)36
Type Locality: Carlton meteorite, Carlton, Hamilton Co., Texas, USA
Reference: American Mineralogist, Volume 79, pages 375-380, 1994
Chlorapatite
Formula: Ca5(PO4)3Cl
Localities: Reported from at least 16 localities in this region.
Chlorargyrite
Formula: AgCl
Localities: Reported from at least 988 localities in this region.
Photo: © Elmar Lackner. Chlorargyrite from Reward Mine, Kohatk, Vekol District, Vekol Mts, Tohono O'odham Indian Reservation, Pinal Co., Arizona, USA
Chlorargyrite var: Bromian Chlorargyrite
Formula: Ag(Cl,Br)
Localities: Reported from at least 72 localities in this region.
Photo: Bromian Chlorargyrite from AO prospect, Barstow, San Bernardino Co., California, USA
Chlorargyrite var: Iodian Bromian Chlorargyrite
Formula: Ag(Cl,Br,I)
Localities: Globe area, Pinal Mts, Globe-Miami District, Gila Co., Arizona, USA
Nevada Wonder mine, Wonder District, Churchill Co., Nevada, USA
Chlorartinite
Formula: Mg2(CO3)(OH)Cl · 2H2O
Locality: Chlorartinite occurrence, Kenton, Duncan, Houghton Co., Michigan, USA
'Chlorite Group'
Localities: Reported from at least 2801 localities in this region.
Photo: © 2002, Keith Wood. Chlorite Group from Green Mountain Mine, Day Book, Yancey Co., North Carolina, USA
'Chlorite Group var: Brunsvigite'
Formula: (Fe2+,Mg,Al)6(Si,Al)4O10(OH)8
Localities: Marquette Co., Michigan, USA
Pipe Line road, Copper Chief Mine area, Jerome, Verde District, Black Hills (Black Hill Range), Yavapai Co., Arizona, USA
United Verde Mine (The Big Hole; Big Hole property; Hull Mine; Hopewell tunnel; Patented claim 3480; Patented claim 2812; Patented claims 3348), Jerome, Verde District, Black Hills (Black Hill Range), Yavapai Co., Arizona, USA
Clouds Creek Pluton, Saluda Co., South Carolina, USA
Chloritoid
Formula: (Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Localities: Reported from at least 110 localities in this region.
Photo: © 2009 Peter Cristofono. Chloritoid from Weaver Hill, Tyson, Plymouth, Windsor Co., Vermont, USA
Chloritoid var: Masonite
Localities: Prospect Hill, Natick, West Warwick, Kent Co., Rhode Island, USA
Champion Mine (Beacon Mine), Champion, Marquette iron range, Marquette Co., Michigan, USA
'Chloromagnesite'
Formula: MgCl2
Localities: Lee Co., Virginia, USA
Saratoga Spring, Death Valley, Death Valley National Park, San Bernardino Co., California, USA
'Chlorophaeite'
Formula: (Ca,Mg,Fe)2Fe2Si4O13 · 10H2O
Localities: Franklin Co., Massachusetts, USA
Cheapside Quarry (East Deerfield Quarry; Trew Corp. Quarry), Deerfield, Franklin Co., Massachusetts, USA
Chlorophoenicite (TL)
Formula: (Mn,Mg)3Zn2(AsO4)(OH,O)6
Type Locality: Buckwheat pit (Southwest opening; Buckwheat Mine), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 780; Albanese, J.S. (1967) Chlorophoenicite: Rocks & Minerals: 42: 888-889; Dunn, P.J. (1995): Part5: 665.
Localities: Recorded from at least 2 other localities in this region.
Photo: © Robert O. Meyer. Chlorophoenicite from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
'Chlorophyllite'
Localities: Reported from at least 7 localities in this region.
Photo: © 2009 Peter Cristofono. Chlorophyllite from Neal Mine, Unity, Sullivan Co., New Hampshire, USA
Choloalite
Formula: (Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
Localities: Joe & Grand Central shafts area dump, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
T.E.I. pit, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
McAlpine Mine, Peñon Blanco Peak, Coulterville District, Mother Lode Belt, Tuolumne Co., California, USA
Photo: © Brent Thorne. Choloalite from Joe & Grand Central shafts area dump, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Chondrodite
Formula: (Mg,Fe2+)5(SiO4)2(F,OH)2
Localities: Reported from at least 82 localities in this region.
Photo: © C.H.M.-Schäfer. Chondrodite from Tilly Foster Iron Mine, Brewster, Southeast Township, Putnam Co., New York, USA
Christite (TL)
Formula: TlHgAsS3
Type Locality: Carlin Gold mine, Elko, Lynn District, Eureka Co., Nevada, USA
Reference: Amer.Min.(1977) 62, 421-425; Min.Rec.:20:469.
Localities: Recorded from at least 1 other locality in this region.
'Chromian Leadhillite'
Locality: Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Photo: © Brent Thorne. Chromian Leadhillite from Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Chromite
Formula: Fe2+Cr3+2O4
Localities: Reported from at least 2095 localities in this region.
Photo: © M.Heintzelman. Chromite from Wood's Chrome Mine, Texas, Little Britain Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA
Chromite var: Ferrian Chromite
Formula: Fe2+(Cr,Fe3+)2O4
Locality: Cape Blanco Mine, Cape Blanco, Curry Co., Oregon, USA
Chromium-dravite
Formula: Na(Mg3)Cr3+6(Si6O18)(BO3)3(OH)3(OH)
Locality: American #1 Talc Mine, Balmat, Balmat-Edwards Zinc District, St. Lawrence Co., New York, USA
Chromo-alumino-povondraite
Formula: Na(Cr3)(Al4Mg2)(Si6O18)(BO3)3(OH)3O
Locality: American #1 Talc Mine, Balmat, Balmat-Edwards Zinc District, St. Lawrence Co., New York, USA
Photo: © Vincent Bourgoin 2012. Chromo-alumino-povondraite from American #1 Talc Mine, Balmat, Balmat-Edwards Zinc District, St. Lawrence Co., New York, USA
Chromschieffelinite (TL)
Formula: Pb10Te6+6O20(OH)14(CrO4)(H2O)5
Type Locality: Bird Nest drift, Otto Mountain, Baker, San Bernardino Co., California, USA
Habit: orthorhombic
Colour: light yellow
Reference: Anthony R. Kampf, Stuart J. Mills, Robert M. Housley, Michael S. Rumsey, and John Spratt (2012), Lead-tellurium oxysalts from Otto Mountain near Baker, California: VII. Chromschieffelinite, Pb10Te6O20(CrO4)(H2O)5, the chromate analogue of schieffelinite. American Mineralogist: 97: 212-219.
Chrysoberyl
Formula: BeAl2O4
Localities: Reported from at least 95 localities in this region.
Photo: © Christopher O'Neill. Chrysoberyl from Greenfield, Greenfield Township, Saratoga Co., New York, USA
Chrysoberyl var: Alexandrite
Formula: BeAl2O4
Locality: La Madera Mtn., Petaca District, Rio Arriba Co., New Mexico, USA
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O (x < 1)
Localities: Reported from at least 1781 localities in this region.
Photo: © Elmar Lackner 2009. Chrysocolla from 79 Mine, Chilito, Hayden area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA
'Chrysolite'
Localities: Reported from at least 40 localities in this region.
'Chrysoprase'
Localities: Reported from at least 31 localities in this region.
Photo: © 2005 - MMI. Chrysoprase from Perry Chrysoprase Mine, Plomosa District, Plomosa Mts, La Paz Co., Arizona, USA
Chrysotile
Formula: Mg3(Si2O5)(OH)4
Localities: Reported from at least 389 localities in this region.
Photo: © Cory Boehne. Chrysotile from Salt River District, Gila Co., Arizona, USA
Churchite-(Y)
Formula: Y(PO4) · 2H2O
Localities: Reported from at least 15 localities in this region.
Photo: © JBS 2007. Churchite-(Y) from Girard, Girard District, Burke Co., Georgia, USA
Cianciulliite (TL)
Formula: Mn(Mg,Mn)2Zn2(OH)10 · 2-4H2O
Type Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Description: A single specimen only with two additional suspected specimens (Franklin Mineral Museum assets).
Reference: Dunn, et al: AM. Min.:76:1708-1710 (1991); Dunn(1995):Pt4:588-589.
'Cimolite'
Formula: Al4Si9O24 · 6H2O
Localities: Tubbs Ledge Prospect, Norway, Oxford Co., Maine, USA
East Tintic District, East Tintic Mts, Utah Co., Utah, USA
Nederland District, Boulder Co., Colorado, USA
Cinnabar
Formula: HgS
Localities: Reported from at least 1407 localities in this region.
Photo: © 2001 John H. Betts. Cinnabar from Grant Co., New Mexico, USA
Claringbullite
Formula: Cu4(OH)7Cl · nH2O
Localities: Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Southwest Mine, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Cole Mine (Cole shaft; Cole No. 3), Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Photo: © 2009 ROM. Claringbullite from Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Clarkeite (TL)
Formula: (Na,Ca,Pb)(UO2)O(OH) · 0-1H2O
Type Locality: Deer Park No. 2 Mine, Penland, Spruce Pine District, Mitchell Co., North Carolina, USA
Reference: Ross, Henderson, and Posnjak (1931), American Mineralogist: 16: 213.; Arthur Roe and John S. White, Jr. (1976) A Catalog of the Type Specimens in the Mineral Collection, National Museum of Natural History
Localities: Recorded from at least 12 other localities in this region.
Photo: © 2007, JGW. Clarkeite from Fanny Gouge Mine, Micaville, Celo, Spruce Pine District, Yancey Co., North Carolina, USA
Claudetite
Formula: As2O3
Localities: Reported from at least 9 localities in this region.
Clausthalite
Formula: PbSe
Localities: Reported from at least 25 localities in this region.
Photo: © Brent Thorne 2008. Clausthalite from Firefly–Pigmay Mine, La Sal Quadrangle, San Juan Co., Utah, USA
'Clay'
Localities: Reported from at least 723 localities in this region.
Photo: © 2006 Peter Cristofono. Clay from Stoddard Mine, Westmoreland, Cheshire Co., New Hampshire, USA
Clearcreekite (TL)
Formula: (Hg+2)1.5(CO3)(OH) · 2H2O
Type Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Reference: Mineralogical Record: 33: 162; Canadian Mineralogist (2001): 39: 779-784.
Clinoatacamite
Formula: Cu2(OH)3Cl
Localities: Rowley Mine (Rawley Mine; Reliance Mine; Reliance Copper Mine; Rainbow Mine; Theba Mine; San Carlos patented claim #4524), Theba, Painted Rock District, Painted Rock Mts, Maricopa Co., Arizona, USA
Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Tonopah-Belmont Mine (East Vulture Mine; Belmont-McNeil Mine; Economy Mining Co. Mine), Belmont Mountain, Tonopah, Osborn District, Big Horn Mts, Maricopa Co., Arizona, USA
Photo: © 2010 by Jesse Crawford. Clinoatacamite from Harrington-Hickory Mine, Milford, Star and North Star Districts, Star Range, Beaver Co., Utah, USA
Clinobisvanite
Formula: Bi(VO4)
Localities: Reported from at least 11 localities in this region.
Photo: © Brent Thorne. Clinobisvanite from Linka Mine, Spencer Hot Springs District, Lander Co., Nevada, USA
'Clinochalcomenite'
Formula: CuSeO3 · 2H2O
Localities: Suncup No. 2 (Puckett), Uravan District, San Miguel Co., Colorado, USA
Polar Mesa, Polar Mesa District (Polar Mesa), Grand Co., Utah, USA
Lopez incline, San Rafael District (San Rafael Swell), Emery Co., Utah, USA ? (more information)
Photo: © Brent Thorne. Clinochalcomenite from Suncup No. 2, Uravan District, San Miguel Co., Colorado, USA
Clinochlore (TL)
Formula: (Mg,Fe2+)5Al(AlSi3O10)(OH)8
Type Locality: Brinton's Quarry, West Chester, Westtown Township, Chester Co., Pennsylvania, USA
Reference: Dana 6:1068; Rocks & Min.: 21:22.
Localities: Recorded from at least 272 other localities in this region.
Photo: © 2011 Harold Moritz. Clinochlore from Tilly Foster Iron Mine, Brewster, Southeast Township, Putnam Co., New York, USA
Clinochlore var: Chromian Clinochlore
Formula: Mg5(Al,Cr)2Si3O10(OH)8
Localities: Reported from at least 82 localities in this region.
Photo: © M.Heintzelman. Chromian Clinochlore from Wood's Chrome Mine, Texas, Little Britain Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA
Clinochlore var: Delessite
Formula: (Mg,Fe,Fe,Al)(Si,Al)4O10(O,OH)8
Localities: Reported from at least 10 localities in this region.
Clinochlore var: Diabantite
Formula: (Mg,Fe,Al)6((Si,Al)4O10)(OH)8
Localities: Reported from at least 15 localities in this region.
Photo: © Rob Lavinsky. Diabantite from Pennsylvania Railroad cut, Mt Pleasant, Jersey City, Hudson Co., New Jersey, USA
Clinochlore var: Leuchtenbergite
Localities: Reported from at least 8 localities in this region.
Clinochlore var: Pennine
Localities: Reported from at least 48 localities in this region.
Photo: © Rob Lavinsky. Pennine from Line pit, Fulton Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA
Clinochlore var: Pyknochlorite
Locality: Eureka District, Eureka Co., Nevada, USA
Clinochlore var: Ripidolite
Formula: (Mg,Fe,Al)6(Si,Al)4O10(OH)8
Localities: Reported from at least 24 localities in this region.
Photo: © John Sobolewski. Ripidolite from Spurr Mine, Imperial Heights, Baraga Co., Michigan, USA
Clinochlore var: Sheridanite
Formula: (Mg,Al,Fe)6(Si,Al)4O10(OH)8
Localities: Reported from at least 6 localities in this region.
Clinochrysotile
Localities: Reported from at least 30 localities in this region.
Photo: © 2006 Peter Cristofono. Clinochrysotile from Belvidere Mountain Quarries, Lowell & Eden, Orleans & Lamoille Cos., Vermont, USA
Clinoclase
Formula: Cu3(AsO4)(OH)3
Localities: Reported from at least 29 localities in this region.
Photo: © 2005 D. Schläfli. Clinoclase from Majuba Hill Mine, Antelope District, Pershing Co., Nevada, USA
Clinoenstatite
Formula: MgSiO3
Localities: Reported from at least 18 localities in this region.
Photo: © 2008, JGW. Clinoenstatite from Cornwall Mines, Cornwall Borough, Lebanon Co., Pennsylvania, USA
Clinoferrosilite (TL)
Formula: Fe2+SiO3
Type Locality: Obsidian Cliff, Yellowstone National Park, Park Co., Wyoming, USA
Reference: Amer.J.Sci.(1935) ser. 4, 30, 481-494
Localities: Recorded from at least 3 other localities in this region.
Clinohedrite (TL)
Formula: CaZn(SiO4) · H2O
Type Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Reference: Palache(1935):106; Dunn, et al: Am. Min.:68:1033-1037 (1983); Dunn(1995):Pt3:365.
Localities: Recorded from at least 4 other localities in this region.
Photo: © M. Burkhardt. Clinohedrite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Clinohumite
Formula: Mg9(SiO4)4F2
Localities: Reported from at least 30 localities in this region.
Photo: © 2008, JGW. Clinohumite from Crestmore quarries, Crestmore, Riverside Co., California, USA
Clinohumite var: Titanclinohumite
Localities: Reported from at least 7 localities in this region.
Clinojimthompsonite (TL)
Formula: (Mg,Fe)5Si6O16(OH)2
Type Locality: Carlton Quarry (Carleton Talc Mine), Chester, Windsor Co., Vermont, USA
Reference: AmMin 63:1000
'Clinoptilolite'
Localities: Reported from at least 159 localities in this region.
Photo: © Elmar Lackner. Clinoptilolite from Succor Creek, Malheur Co., Oregon, USA
Clinoptilolite-Ca
Formula: (Ca,Na,K)2-3Al3(Al,Si)2Si13O36 · 12H2O
Localities: Rock Island Dam, Douglas Co., Washington, USA
Roadcuts, Altoona, Wahkiakum Co., Washington, USA
Cape Lookout, Tillamook Co., Oregon, USA
Succor Creek, Malheur Co., Oregon, USA
Fishcreek Turn Quarry, Clackamas Co., Oregon, USA
Photo: Clinoptilolite-Ca from Cape Lookout, Tillamook Co., Oregon, USA
Clinoptilolite-K (TL)
Formula: (K,Na,Ca)2-3Al3(Al,Si)2Si13O36 · 12H2O
Type Locality: Hoodoo Mountain, Park Co., Wyoming, USA
Reference: Am Min (1938) 17:128-134; Am. J. Sci. (1890) 40:232; PIRSSON, L.V. (1890): On mordenite. Am. J. Sci. 140, 232-237.
Localities: Recorded from at least 3 other localities in this region.
Clinoptilolite-Na (TL)
Formula: (Na,K,Ca)2-3Al3(Al,Si)2Si13O36 · 12H2O
Type Locality: Barstow Formation, Owl Canyon, San Bernardino Co., California, USA
Reference: The Canadian Mineralogist Vol. 35, pp. 1571-1606 (1997)
Localities: Recorded from at least 5 other localities in this region.
Photo: © Dick Dionne. Clinoptilolite-Na from Richardson Ranch, Madras, Jefferson Co., Oregon, USA
'Clinopyroxene Subgroup'
Localities: Reported from at least 56 localities in this region.
Clinosafflorite
Formula: CoAs2
Localities: Lovelock Mine, Bolivia, Cottonwood Canyon, Table Mountain District, Churchill Co., Nevada, USA
London mine, National District, Humboldt Co., Nevada, USA
American Eagle; Luona Occurrence, Elk Mountain District, Gunnison Co., Colorado, USA
'Clinotyrolite'
Formula: Ca2Cu9(AsO4,SO4)4(OH,O)10 · 10H2O
Localities: Lovelock Mine, Bolivia, Cottonwood Canyon, Table Mountain District, Churchill Co., Nevada, USA
Nickel mine, Bolivia, Cottonwood Canyon, Table Mountain District, Churchill Co., Nevada, USA
Photo: © R.D.Green. Clinotyrolite from Lovelock Mine, Bolivia, Cottonwood Canyon, Table Mountain District, Churchill Co., Nevada, USA
Clinozoisite
Formula: {Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Localities: Reported from at least 292 localities in this region.
Photo: Clinozoisite from Belvidere Mountain Quarries, Lowell & Eden, Orleans & Lamoille Cos., Vermont, USA
Clinozoisite var: Clinothulite
Localities: Reported from at least 10 localities in this region.
Photo: © 2008 Peter Cristofono. Clinothulite from Joppa Hill, Amherst, Hillsborough Co., New Hampshire, USA
'Clinozoisite-Epidote Series'
Localities: Old Hag prospect #1, Van Dam Peak, Poway, San Diego Co., California, USA
Old Hag prospect #2, Van Dam Peak, Poway, San Diego Co., California, USA
Limecrest Quarry, Sparta Township, Sussex Co., New Jersey, USA
Belvidere Mountain Quarries (Vermont Asbestos Group Mine; VAG Mine; Ruberoid Asbestos Mine; Eden Mills Quarries), Lowell & Eden, Orleans & Lamoille Cos., Vermont, USA
Photo: © 2005 Peter Cristofono. Clinozoisite-Epidote Series from Belvidere Mountain Quarries, Lowell & Eden, Orleans & Lamoille Cos., Vermont, USA
Clintonite (TL)
Formula: Ca(Mg,Al)3(Al3SiO10)(OH)2
Type Locality: Clintonite type locality, Amity, Town of Warwick, Orange Co., New York, USA
Reference: George Robinson & Steven Chamberlain (2007) Gazetteer of major New York State mineral localities. Rocks & Minerals, 82, #6, 472-483.
Localities: Recorded from at least 34 other localities in this region.
Photo: © Dan & Diana Weinrich Minerals. Clintonite from Crestmore quarries, Crestmore, Riverside Co., California, USA
Clintonite var: Valuevite
Locality: Crestmore, Riverside Co., California, USA
'Coal'
Localities: Reported from at least 37 localities in this region.
'Coal var: Anthracite'
Localities: Reported from at least 24 localities in this region.
Photo: © M.Heintzelman. Anthracite from Shamokin, Northumberland Co., Pennsylvania, USA
'Coal var: Bituminous Coal'
Localities: Reported from at least 41 localities in this region.
Photo: Bituminous Coal from Washington Township, Licking Co., Ohio, USA
'Coal var: Jet'
Localities: Reported from at least 8 localities in this region.
Coalingite (TL)
Formula: Mg10Fe3+2(OH)24[CO3] · 2H2O
Type Locality: New Idria District, Diablo Range, San Benito Co., California, USA
Reference: American Mineralogist 1965: 50: 1893-1913.
Localities: Recorded from at least 7 other localities in this region.
Photo: © Knut Eldjarn. Coalingite from Clear Creek deposits, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
'Cobalt'
Formula: Co
Locality: Little Chief Mine (Little Chief prospect), Little Chief Peak, Sultan Basin, Sultan District, Snohomish Co., Washington, USA
Cobaltite
Formula: CoAsS
Localities: Reported from at least 118 localities in this region.
Photo: Cobaltite from Kibblehouse Quarry, Perkiomenville, Marlborough Township, Montgomery Co., Pennsylvania, USA
'Cobaltoan Arsenopyrite'
Localities: Reported from at least 7 localities in this region.
Cobaltoblödite (TL)
Formula: Na2Co(SO4)2•4H2O
Type Locality: Blue Lizard Mine, Chocolate Drop, Red Canyon, White Canyon District, San Juan Co., Utah, USA
Reference: Kasatkin, A.V., Nestola, F., Pla´sˇil, J., Marty, J., Belakovskiy, D.I., Agakhanov, A.A., Mills, S.J., Lanza, A., Favaro, M. and Bianchin, S. (2013) Cobaltoblödite, IMA 2012- 059. CNMNC Newsletter No. 15, February 2013, page 5; Mineralogical Magazine, 77, 1-12.
Cobaltomenite
Formula: CoSeO3 · 2H2O
Localities: Reported from at least 7 localities in this region.
Photo: © Brent Thorne. Cobaltomenite from Molly Hogan Group, Parco Mine Group, Thompsons District, Grand Co., Utah, USA
Cobaltpentlandite
Formula: (Co,Ni,Fe)9S8
Localities: Alta Mine (Alta California Mine; Alta Copper claim), Low Divide, Low Divide District, Klamath Mts, Del Norte Co., California, USA
Low Divide District, Klamath Mts, Del Norte Co., California, USA
Cobaltzippeite (TL)
Formula: Co(UO2)2(SO4)O2 · 3.5H2O
Type Locality: Happy Jack Mine (Blue Dike Mine), Copper Point, White Canyon, White Canyon District, San Juan Co., Utah, USA
Reference: R&M 53:2 pp 68-71
Localities: Recorded from at least 1 other locality in this region.
Photo: Cobaltzippeite from Happy Jack Mine, Copper Point, White Canyon, White Canyon District, San Juan Co., Utah, USA
Coconinoite (TL)
Formula: Fe3+2Al2(UO2)2(PO4)4(SO4)(OH)2 · 20H2O
Type Locality: Sun Valley Mine, Vermillion Cliffs District, Coconino Co., Arizona, USA
Description: Occurs in seams 1 mm or less in thickness, mostly along bedding planes of a light colored arkosic sandstone that is fine-grained, poorly sorted & thinly bedded.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 180; Young, E.J., et al (1966), Coconinoite, a new uranium mineral from Utah and Arizona, Am.Min.: 51: 651-663.
Localities: Recorded from at least 5 other localities in this region.
Photo: © Antonio Borrelli. Coconinoite from Jomac Mine, White Canyon, White Canyon District, San Juan Co., Utah, USA
'Coeruleolactite'
Locality: General Trimble's Mine, East Whiteland Township, Chester Co., Pennsylvania, USA - erroneously reported
Photo: © . Coeruleolactite from General Trimble's Mine, East Whiteland Township, Chester Co., Pennsylvania, USA
Coesite (TL)
Formula: SiO2
Type Locality: Meteor Crater (Barringer Crater), Winslow, Coconino Co., Arizona, USA
Description: Abundant constituent of sheared Coconino Sandstone in debris directly below crater floor & beyond the crater rim & in breccia deep below the crater floor & in lechatelierite in waterlain beds within the crater; irregular grains 5 to more than 50 microns.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 180; Chao, E.C.T., et al (1960), First natural occurrence of coesite, Science: 132: 220-222.
Localities: Recorded from at least 3 other localities in this region.
Photo: © 2007 Peter Cristofono. Coesite from Meteor Crater, Winslow, Coconino Co., Arizona, USA
Coffinite (TL)
Formula: (U4+,Th)(SiO4)1-x(OH)4x
Type Locality: La Sal No. 2 Mine, Beaver Mesa, Mesa Co., Colorado, USA
Description: Found in the black, vanadium rich, high-grade ore mixed with carbonaceous material and other black minerals and doloresite.
Reference: "Minerals of Colorado, updated & revised", p. 157, by Eckel, Edwin B., 1997
Localities: Recorded from at least 270 other localities in this region.
Photo: © Paul Schumacher. Coffinite from Temple Mountain, San Rafael District, Emery Co., Utah, USA
Cohenite
Formula: (Fe,Ni,Co)3C
Localities: Odessa Craters, Odessa, Ector Co., Texas, USA
Canyon Diablo meteorite, Meteor Crater and vicinity, Winslow, Coconino Co., Arizona, USA
Las Vegas meteorite, Clark Co., Nevada, USA
Pulaski County meteorite, Pulaski Co., Georgia, USA
Goose Lake meteorite, Goose Lake, Modoc Co., California, USA
Photo: © 2008, JGW. Cohenite from Canyon Diablo meteorite, Meteor Crater and vicinity, Winslow, Coconino Co., Arizona, USA
Colemanite (TL)
Formula: Ca[B3O4(OH)3] · H2O
Type Locality: Furnace Creek District (Furnace Creek Borate District; Death Valley Area Borate Deposits; Ryan area), Inyo Co., California, USA
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 352; Erd, R.C., J.F. McAllister, and A.C. Vlisidis (1970) Wardsmithite 5CaO • MgO •12B2O3 •30H2O, a new borate mineral from the Death Valley region, California. American Mineralogist: 55: 351; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 290.
Localities: Recorded from at least 105 other localities in this region.
Photo: © . Colemanite from U.S. Borax open pit, U.S. Borax Mine, Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
'Colerainite'
Formula: 4MgO · Al2O3 · 2SiO2 · 5H2O
Localities: Brinton's Quarry, West Chester, Westtown Township, Chester Co., Pennsylvania, USA
Sylmar, West Nottingham Township, Chester Co., Pennsylvania, USA
Leesburg Quarry, Leesburg, Loudoun Co., Virginia, USA
White Quarry, Leesburg, Loudoun Co., Virginia, USA
Photo: © M.Heintzelman. Colerainite from Brinton's Quarry, West Chester, Westtown Township, Chester Co., Pennsylvania, USA
Collinsite
Formula: Ca2(Mg,Fe2+)(PO4)2 · 2H2O
Localities: Reported from at least 7 localities in this region.
Photo: © JBS 2006. Collinsite from Tip Top Mine, Fourmile, Custer District, Custer Co., South Dakota, USA
'Collinsite-Fairfieldite Series'
Locality: Palermo No. 2 mine, Groton, Grafton Co., New Hampshire, USA
Coloradoite (TL)
Formula: HgTe
Type Locality: Keystone Mine, Magnolia District, Boulder Co., Colorado, USA
Description: Closely intermixed with native tellurium and quartz. The type description of coloradoite was based on impure specimens from the Keystone and Mountain Lion mines in the Magnolia district and from the Smuggler mine in the Balarat district.
Reference: "Minerals of Colorado, updated & revised", p. 158, by Eckel, Edwin B., 1997
Localities: Recorded from at least 56 other localities in this region.
Photo: © Van King. Coloradoite from Keystone Mine, Magnolia District, Boulder Co., Colorado, USA
'Columbite'
Formula: (Fe,Mn)(Nb,Ta)2O6
Localities: Reported from at least 399 localities in this region.
Photo: © 2001 John H. Betts. Columbite from Bedford, Westchester Co., New York, USA
'Columbite var: Titanocolumbite'
Locality: Christie Ward-Lucky Thirteen Mine, Tarryall Springs District (Puma City), Park Co., Colorado, USA
Columbite-(Fe)
Formula: FeNb2O6
Localities: Reported from at least 173 localities in this region.
Photo: © S.M. Whittemore. Columbite-(Fe) from Fisher Quarry, Topsham, Sagadahoc Co., Maine, USA
'Columbite-(Fe)-Tantalite-(Fe) Series'
Locality: North Sugarloaf Mountain locality, Bethlehem, Grafton Co., New Hampshire, USA
'Columbite Group'
Locality: Dike Lode (Dyke Lode), Keystone District, Pennington Co., South Dakota, USA
Columbite-(Mn)
Formula: (Mn,Fe)(Nb,Ta)2O6
Localities: Reported from at least 64 localities in this region.
Photo: © SMS 2005. Columbite-(Mn) from Emmons Quarry, Uncle Tom Mountain, Greenwood, Oxford Co., Maine, USA
'Columbite-(Mn)-Tantalite-(Mn) Series'
Locality: Bennett Quarry, Buckfield, Oxford Co., Maine, USA
Photo: Columbite-(Mn)-Tantalite-(Mn) Series from Bennett Quarry, Buckfield, Oxford Co., Maine, USA
'Columbite-Tantalite'
Localities: Reported from at least 97 localities in this region.
Photo: © 2008 Peter Cristofono. Columbite-Tantalite from Harding Mine, Picuris District, Taos Co., New Mexico, USA
Colusite (TL)
Formula: Cu26V2(As,Sn,Sb)6S32
Type Locality: East Colusa Mine, Berkeley Pit, Butte, Butte District (Summit Valley District), Silver Bow Co., Montana, USA
Description: The East Colusa Mine is important as being the locality of the only type species found at Butte.
Reference: Can Min 19 (1981), 423; Roberts et al., "Encyclopedia of Minerals". Van Nostrand Reinhold Co. 1974; Dana 7:I:387.
Localities: Recorded from at least 26 other localities in this region.
Photo: © Dan & Diana Weinrich Minerals. Colusite from Butte District, Silver Bow Co., Montana, USA
Comancheite (TL)
Formula: Hg2+55N3–24(NH2,OH)4(Cl,Br)34
Type Locality: Mariposa Mine (California Mountain Mine), Terlingua District, Brewster Co., Texas, USA
Reference: Canadian Mineralogist (1981): 19: 393-396.
Localities: Recorded from at least 2 other localities in this region.
Photo: © c Knut Eldjarn. Comancheite from Mariposa Mine, Terlingua District, Brewster Co., Texas, USA
Compreignacite
Formula: K2(UO2)6O4(OH)6 · 7H2O
Localities: Palermo No. 1 Mine (Palermo No. 1 pegmatite), Groton, Grafton Co., New Hampshire, USA
Pick's Delta Mine (Delta Mine; Pick's Mine), Delta, San Rafael District (San Rafael Swell), Emery Co., Utah, USA
Jomac Mine, White Canyon, White Canyon District, San Juan Co., Utah, USA
Marshall Pass District, Saguache Co., Colorado, USA
Conichalcite
Formula: CaCu(AsO4)(OH)
Localities: Reported from at least 130 localities in this region.
Photo: © 2007 D. Schläfli. Conichalcite from Gold Hill Mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
Connellite
Formula: Cu19(SO4)(OH)32Cl4 · 3H2O
Localities: Reported from at least 34 localities in this region.
Photo: © Brent Thorne 2009. Connellite from Southwest Mine, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Cookeite (TL)
Formula: (Al2Li)Al2(AlSi3O10)(OH)8
Type Locality: Mount Mica Quarry, Paris, Oxford Co., Maine, USA
Habit: Radial clusters of tightly grown platy crystals. The clusters show the typical arrangement of chlorite group minerals.
Colour: White to clear when pure. Also found pale yellow, pale, green, or pale pink.
Reference: King, V. T. and Foord, E. E., 1994, Mineralogy of Maine, Descriptive Mineralogy, volume 1, Maine Geological Survey, Augusta, Maine, USA, pp. 418 + 88 plates.
Localities: Recorded from at least 79 other localities in this region.
Photo: © Van King. Cookeite from Mount Mica Quarry, Paris, Oxford Co., Maine, USA
Cooperite
Formula: PtS
Localities: Reported from at least 13 localities in this region.
Copiapite
Formula: Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
Localities: Reported from at least 134 localities in this region.
Photo: © Brent Thorne. Copiapite from Dexter No. 7 Mine, Calf Mesa, San Rafael District, Emery Co., Utah, USA
Copiapite var: Knoxvillite
Locality: Redington Mine (Boston Mine; Knoxville Mine; Excellsior Mine), Knoxville, Knoxville District, Napa Co., California, USA
'Copiapite Group'
Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex Co., Connecticut, USA
Copper
Formula: Cu
Localities: Reported from at least 1428 localities in this region.
Photo: © Van King. Copper from Quincy Mine, Hancock, Houghton Co., Michigan, USA
Copper var: Nickeloan Copper
Formula: (Cu,Ni,Fe)
Locality: Josephine Creek placers, Josephine Creek District, Josephine Co., Oregon, USA
Photo: © Pavel M. Kartashov. Nickeloan Copper from Josephine Creek placers, Josephine Creek District, Josephine Co., Oregon, USA
'Copper Pitch Ore'
Localities: Christainsen Group, Melrose District, Silver Bow Co., Montana, USA
Glory Copper prospect, Melrose District, Silver Bow Co., Montana, USA
Christmas Mine (Red Bird shafts; Inspiration Mine; Hackberry shafts), Christmas, Christmas area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA
'Copper Stain'
Localities: Reported from at least 352 localities in this region.
Coquandite (TL)
Formula: (SbO)6(SO4)O2 · H2O
Type Locality: Lucky Knock Mine (Lawrence Mine), Whitestone Coulee, Tonasket, Okanogan Co., Washington, USA
Reference: Min.Mag.: 56:599-603.
Photo: © Saul Krotki 2007. Coquandite from Lucky Knock Mine, Whitestone Coulee, Tonasket, Okanogan Co., Washington, USA
Coquimbite
Formula: Fe2-xAlx(SO4)3 · 9H2O, x ~0.5
Localities: Reported from at least 45 localities in this region.
Photo: © Brent Thorne. Coquimbite from Dexter No. 7 Mine, Calf Mesa, San Rafael District, Emery Co., Utah, USA
Coquimbite var: Aluminous Coquimbite
Locality: United Verde Mine (The Big Hole; Big Hole property; Hull Mine; Hopewell tunnel; Patented claim 3480; Patented claim 2812; Patented claims 3348), Jerome, Verde District, Black Hills (Black Hill Range), Yavapai Co., Arizona, USA
Corderoite (TL)
Formula: Hg2+3S2Cl2
Type Locality: McDermitt Mine (Cordero Mine; Old Cordero Mine), Opalite District, Humboldt Co., Nevada, USA
Reference: [AmMin 84:194]
Localities: Recorded from at least 7 other localities in this region.
Photo: Corderoite from McDermitt Mine, Opalite District, Humboldt Co., Nevada, USA
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Localities: Reported from at least 202 localities in this region.
Photo: © 2001 John H. Betts. Cordierite from Richmond Soapstone Quarry, Richmond, Cheshire Co., New Hampshire, USA
Corkite
Formula: PbFe3(PO4)(SO4)(OH)6
Localities: Reported from at least 26 localities in this region.
Photo: © Brent Thorne. Corkite from Kearsarge Mine, Dry Canyon area, Ophir District, Oquirrh Mts, Tooele Co., Utah, USA
Cornetite
Formula: Cu3(PO4)(OH)3
Localities: Reported from at least 10 localities in this region.
Photo: Cornetite from South side of Saginaw Hill, Amole Mine group, Saginaw Hill, Amole District, Tucson Mts, Pima Co., Arizona, USA
Cornubite
Formula: Cu5(AsO4)2(OH)4
Localities: Reported from at least 15 localities in this region.
Photo: © DM 2/11. Cornubite from Centennial Eureka Mine, Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Cornwallite
Formula: Cu5(AsO4)2(OH)4
Localities: Reported from at least 28 localities in this region.
Photo: © Brent Thorne. Cornwallite from Gold Hill Mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
Coronadite (TL)
Formula: Pb(Mn4+6Mn3+2)O16
Type Locality: Horse-Shoe shaft (Horseshoe Mine), Coronado Mine (Coronado Mining Co. property; Arizona Copper Co. group [in part]), Coronado vein, Copper Plate Gulch, Copper Mountain District (Clifton-Morenci District), Shannon Mts, Greenlee Co., Arizona, USA
Reference: AmMin.: 27 (1942): 48; AmMin.: 74 (1989): 913; Handbook of Mineralogy, Vol. 3 (1997).
Localities: Recorded from at least 50 other localities in this region.
Photo: © T. Kennedy 2002. Coronadite from Glove Mine, Glove Mine group, Devil's Cash Box ridge, Amado, Cottonwood Canyon, Tyndall District, Santa Rita Mts, Santa Cruz Co., Arizona, USA
Correianevesite
Formula: Fe2+Mn2+2(PO4)2 · 3H2O
Locality: Havey Mine (Havey Quarry; Berry Quarry; Berry-Havey Quarry), Poland, Androscoggin Co., Maine, USA
Corrensite
Formula: (Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
Localities: Reported from at least 14 localities in this region.
Photo: © 2009, JGW. Corrensite from Kibblehouse Quarry, Perkiomenville, Marlborough Township, Montgomery Co., Pennsylvania, USA
Corundum
Formula: Al2O3
Localities: Reported from at least 392 localities in this region.
Photo: © 2001 John H. Betts. Corundum from Limecrest Quarry, Sparta Township, Sussex Co., New Jersey, USA
Corundum var: Ruby
Formula: Al2O3
Localities: Reported from at least 44 localities in this region.
Photo: © Rob Lavinsky. Ruby from Franklin Quarry, Franklin Marble, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Corundum var: Sapphire
Formula: Al2O3
Localities: Reported from at least 68 localities in this region.
Photo: Sapphire from Jacobs Ruby Mine, Cowee Valley, Macon Co., North Carolina, USA
Corundum var: Star Ruby
Locality: Alder Gulch placers, Alder Gulch District (Virginia City District; Fairweather District), Madison Co., Montana, USA
Corvusite (TL)
Formula: (Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
Type Locality: Jack claim, La Sal District, North Mountain, La Sal Mts, Grand Co., Utah, USA
Reference: Dana 7:I:603.
Localities: Recorded from at least 80 other localities in this region.
Photo: © 2007, JGW. Corvusite from Temple Mountain, San Rafael District, Emery Co., Utah, USA
Cosalite
Formula: Pb2Bi2S5
Localities: Reported from at least 38 localities in this region.
Photo: © Wm. C. van Laer. Cosalite from Delmoe Lake area, Boulder Batholith, Jefferson Co., Montana, USA
Coskrenite-(Ce) (TL)
Formula: (Ce,Nd,La)2(C2O4)(SO4)2 · 12H2O
Type Locality: Alum Cave Bluff, Great Smoky Mountains National Park, Sevier Co., Tennessee, USA
Reference: Canadian Mineralogist (1999) 37, 1453-1462
Photo: © JBS 2006. Coskrenite-(Ce) from Alum Cave Bluff, Great Smoky Mountains National Park, Sevier Co., Tennessee, USA
Cotunnite
Formula: PbCl2
Localities: Grand Gulch Mine (Adams patented [claim]), Grand Gulch, Bentley District, Grand Wash Cliffs, Mohave Co., Arizona, USA
Tintic District, East Tintic Mts, Juab Co., Utah, USA
Bird Nest E3, Otto Mountain, Baker, San Bernardino Co., California, USA
Manhan Mines (Loudville Mine; Southampton Lead Mine; Northampton Lead Mine), Easthampton, Hampshire Co., Massachusetts, USA (more information)
Coulsonite (TL)
Formula: Fe2+V3+2O4
Type Locality: Buena Vista Iron Mine, Mineral Basin District, Churchill Co., Nevada, USA
Habit: octahedra
Colour: black
Reference: Am Min 47:1284-1291
Localities: Recorded from at least 4 other localities in this region.
Photo: © Norman King. Coulsonite from Buena Vista Hills, Mineral Basin District, Pershing Co., Nevada, USA
Covellite
Formula: CuS
Localities: Reported from at least 971 localities in this region.
Photo: © 2002 John H. Betts. Covellite from Galactic Open Pit, Summitville, Summitville District, Rio Grande Co., Colorado, USA
Cowlesite (TL)
Formula: CaAl2Si3O10 · 6H2O
Type Locality: Neer Road, Goble, Columbia Co., Oregon, USA
Reference: Amer.Min.(1975) 60, 951-956; Micro Probe Vol. 6 No. 5 Fall 1987; Tschernich, R. (1992): Zeolites of the World, 117
Localities: Recorded from at least 18 other localities in this region.
Photo: © 2003 DM. Cowlesite from Upper Ritter Quarry, Ritter, Grant Co., Oregon, USA
Coyoteite (TL)
Formula: NaFe3S5 · 2H2O
Type Locality: Coyote Peak, Coastal Range, Humboldt Co., California, USA
Colour: Black
Description: Small grains (only a few found).
Reference: Erd, R.C. and G.K. Czamanske (1981) Orickite and coyoteite, two new sulfide minerals, American Mineralogist; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 67; American Mineralogist: (1983) 68: 245-254.
Photo: © 2008, JGW. Coyoteite from Coyote Peak, Coastal Range, Humboldt Co., California, USA
Crandallite (TL)
Formula: CaAl3(PO4)2(OH)5 · H2O
Type Locality: Brooklyn Mine, Silver City, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Description: Occurs in cavities in a quartz-baryte aggregate.
Reference: Loughlin and Schaller (1917) American Journal of Science: 43: 69; American Mineralogist (1974): 59: 41; American Mineralogist (1980): 65: 953; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 836.
Localities: Recorded from at least 84 other localities in this region.
Photo: © . Crandallite from Little Green Monster Variscite Mine, Clay Canyon, Fairfield, Oquirrh Mts, Utah Co., Utah, USA
Creaseyite (TL)
Formula: Pb2Cu2Fe3+2(Si4.67Al0.33)O15.33(OH)3 · H2O
Type Locality: Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Habit: Fibrous tufts
Colour: Pale green
Description: Occurs in or on cerussite, wulfenite & fluorite; as radiating fibrous spherules with hisingerite cores.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 192, 225, 252; Williams, S.A. & R.A. Bideaux (1975), Creaseyite, Cu2Pb2(Fe,Al)2Si5O17·6H2O, a new mineral from Arizona and Sonora, Min.Mag.: 40: 227-231;
Localities: Recorded from at least 18 other localities in this region.
Photo: Creaseyite from Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Crednerite
Formula: CuMnO2
Localities: Reported from at least 14 localities in this region.
Creedite (TL)
Formula: Ca3SO4Al2F8(OH)2 · 2H2O
Type Locality: Colorado Fluorspar Co. Mine, Wagon Wheel Gap, Mineral Co., Colorado, USA
Description: First found in the fluorite-baryte mine at Wagon Wheel Gap, near Creede, in Mineral County. The fluorite-baryte-bearing vein that contains the mineral is in Tertiary lava flows and tuffs of predominantly rhyolitic and quartz latitic composition.
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 130; "Minerals of Colorado, updated & revised", p. 172, by Eckel, Edwin B., 1997; Rocks & Min.:10:84-85.
Localities: Recorded from at least 22 other localities in this region.
Photo: © Steve Rust. Creedite from Mex-Tex Mine, Bingham, Hansonburg District, Socorro Co., New Mexico, USA
'Crestmoreite'
Localities: Commercial quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Riverside Co., California, USA
Wet Weather Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Riverside Co., California, USA
Lone Star Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Riverside Co., California, USA
Photo: Crestmoreite from Crestmore quarries, Crestmore, Riverside Co., California, USA
Crichtonite
Formula: (Sr,La,Ce,Y)(Ti,Fe3+,Mn)21O38
Locality: Pegmatite Peak, Bearpaw Mts, Hill Co., Montana, USA
Cristobalite
Formula: SiO2
Localities: Reported from at least 121 localities in this region.
Photo: © 2002 John H. Betts. Cristobalite from Coso Hot Springs deposit, Coso Hot Springs, Coso District, Coso Mts, Inyo Co., California, USA
Crocoite
Formula: Pb(CrO4)
Localities: Reported from at least 18 localities in this region.
Photo: © SMS 2013. Crocoite from Butte Mine, Black Butte, Gillespie, Maricopa Co., Arizona, USA
Cronstedtite
Formula: Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4
Localities: Cornucopia Mine (Leopard claim), Cornucopia District, Elko Co., Nevada, USA
Murray meteorite, Calloway Co., Kentucky, USA
Old Mine Park (Lane’s Mine of Trumbull; Hubbard Mine; Long Hill Mine; Old Tungsten Mine), Long Hill, Trumbull, Fairfield Co., Connecticut, USA ? (more information)
Rare Metals Mine (Waldren Mining Company Mine), Aquarius Mts (Aquarius Range; Peacock Range), Mohave Co., Arizona, USA (more information)
Unnamed locality, Aquarius Mts (Aquarius Range; Peacock Range), Mohave Co., Arizona, USA (more information)
Cronusite (TL)
Formula: Ca0.2CrS2 · 2 H2O
Type Locality: Norton County meteorite, Norton Co., Kansas, USA
Reference: S.N. Britvin et al. (2001) Zap. Vser. Mineral. Obshch. 130/3, 29-36 (in russ.)
Photo: © Thomas Witzke. Cronusite from Norton County meteorite, Norton Co., Kansas, USA
'Crossite'
Localities: Reported from at least 24 localities in this region.
Photo: Crossite from North Berkeley, Berkeley, Alameda Co., California, USA
Cryolite
Formula: Na3[AlF6]
Localities: Reported from at least 24 localities in this region.
Photo: © Pavel M. Kartashov. Cryolite from Cryolite Mine, St Peters Dome, Cheyenne District, El Paso Co., Colorado, USA
Cryolithionite
Formula: Na3Li3[AlF6]2
Locality: Zapot pegmatite, Gillis Range, Fitting District, Mineral Co., Nevada, USA
'Cryophyllite'
Localities: Rockport, Essex Co., Massachusetts, USA
Railcut Hill, Gloucester, Essex Co., Massachusetts, USA
Photo: © 2008 Peter Cristofono. Cryophyllite from Rockport, Essex Co., Massachusetts, USA
Cryptohalite
Formula: (NH4)2[SiF6]
Localities: Centralia, Columbia Co., Pennsylvania, USA
Kehley's Run Mine, Shenandoah, Schuylkill Co., Pennsylvania, USA
Photo: © 2008, JGW. Cryptohalite from Shamokin, Northumberland Co., Pennsylvania, USA
Cryptomelane (TL)
Formula: K(Mn4+7Mn3+)O16
Type Locality: Tombstone, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Reference: Richmond, W.E. & M. Fleischer (1942), Cryptomelane, a new name for the commonest of the 'psilomelane' minerals, American Mineralogist: 27: 607-610.
Localities: Recorded from at least 196 other localities in this region.
Photo: © M.Heintzelman. Cryptomelane from White Rock Acres, Carlisle, Cumberland Co., Pennsylvania, USA
Cryptomelane var: Thallian Cryptomelane
Locality: Peach Springs District, Coconino Co., Arizona, USA
Cubanite
Formula: CuFe2S3
Localities: Reported from at least 108 localities in this region.
Photo: © Rob Lavinsky. Cubanite from Mackinaw Mine, Monte Cristo, Monte Cristo District, Snohomish Co., Washington, USA
Cumengeite
Formula: Pb21Cu20Cl42(OH)40 · 6H2O
Localities: Rowley Mine (Rawley Mine; Reliance Mine; Reliance Copper Mine; Rainbow Mine; Theba Mine; San Carlos patented claim #4524), Theba, Painted Rock District, Painted Rock Mts, Maricopa Co., Arizona, USA
Tonopah-Belmont Mine (East Vulture Mine; Belmont-McNeil Mine; Economy Mining Co. Mine), Belmont Mountain, Tonopah, Osborn District, Big Horn Mts, Maricopa Co., Arizona, USA
Photo: © Michael Cline. Cumengeite from Rowley Mine, Theba, Painted Rock District, Painted Rock Mts, Maricopa Co., Arizona, USA
Cummingtonite (TL)
Formula: ☐{Mg2}{Mg5}(Si8O22)(OH)2
Type Locality: Cummingtonite type locality, Cummington, Hampshire Co., Massachusetts, USA
Description: Cummingtonite was originally named in 1824 by Chester Dewey for the type locality in Cummington, Massachusetts, USA. However, Cummingtonite is not found at its type locality due to cummingtonite's redefinition of the Amphibole subcommittee of the IMA, when amphibole names were arbitrarily redefined to avoid providing data for a new mineral name. Physical and chemical properties formarly ascribed to "cummingtonite" must be considered invalid and a new species description for cummingtonite, as now redefined, is necessary.
Reference: Dewey (1824); Am. Min.:63:1023 (1978); Am. Min.:74:1091 (1989).
Localities: Recorded from at least 91 other localities in this region.
Photo: © Charles Creekmur. Cummingtonite from Cummingtonite type locality, Cummington, Hampshire Co., Massachusetts, USA
Cuprite
Formula: Cu2O
Localities: Reported from at least 950 localities in this region.
Photo: © Georges BRET. Cuprite from Ray, Mineral Creek District, Dripping Spring Mts, Pinal Co., Arizona, USA
Cuprite var: Chalcotrichite
Formula: Cu2O
Localities: Reported from at least 44 localities in this region.
Photo: © Rob Lavinsky. Chalcotrichite from Cole Mine, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
'Cuproartinite' (TL)
Formula: (Cu,Mg)2CO3(OH)2 · 3H2O
Type Locality: Gabbs, Gabbs District, Nye Co., Nevada, USA
Reference: American Mineralogist, Volume 67, pages 156-169, 1982
Cuprobismutite (TL)
Formula: Cu8AgBi12S24
Type Locality: Missouri Mine, Hall Valley, Montezuma District, Park Co., Colorado, USA
Reference: Amer.J.Sci.(1884) ser. 3, 27, 349-358 (p. 355); U.S. Geological Survey Professional Paper 223
Localities: Recorded from at least 7 other localities in this region.
Photo: © Brent Thorne. Cuprobismutite from Tunnel Extension No. 2 Mine, Ohio District, Bullion Canyon, Tushar Mts, Piute Co., Utah, USA
'Cuprocassiterite'
Locality: Etta Mine, Keystone, Keystone District, Pennington Co., South Dakota, USA
Cuprocopiapite
Formula: CuFe4(SO4)6(OH)2 · 20H2O
Localities: Calumet and Arizona Mine (Junction Mine; Junction shaft), Calumet and Arizona group of claims (Calumet and Arizona Mining Company group of claims), Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Newton Mine (Jackson Mine), Ione, Amador Co., California, USA
United Verde Mine (The Big Hole; Big Hole property; Hull Mine; Hopewell tunnel; Patented claim 3480; Patented claim 2812; Patented claims 3348), Jerome, Verde District, Black Hills (Black Hill Range), Yavapai Co., Arizona, USA ? (more information)
Cuproiridsite ?
Formula: (Cu,Fe)Ir2S4
Locality: Cape Blanco Mine, Cape Blanco, Curry Co., Oregon, USA
Cupropavonite (TL)
Formula: AgCu2PbBi5S10
Type Locality: Alaska Mine, Alaska Basin, Poughkeepsie Gulch, San Juan Co., Colorado, USA
Reference: Minerals of Colorado (1997) Eckels, E. B.
Localities: Recorded from at least 8 other localities in this region.
Photo: © Brent Thorne 2009. Cupropavonite from Pioche District, Lincoln Co., Nevada, USA
Cuprorivaite
Formula: CaCu[Si4O10]
Localities: Summit Rock, Klamath Co., Oregon, USA
Ajo, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA
Photo: © R.D.Green. Cuprorivaite from Summit Rock, Klamath Co., Oregon, USA
Cuproroméite (TL)
Formula: Cu2Sb2(O,OH)7
Type Locality: Blind Spring Hill, Benton, Blind Spring District (Blind Spring Hill District; Benton District), Benton Range, Mono Co., California, USA
Reference: Arents (1867); Mineralogical Magazine (1953): 30: 100, 362; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 184.
Localities: Recorded from at least 13 other localities in this region.
Photo: © Dan & Diana Weinrich Minerals. Cuproroméite from Cornucopia Mine, Buscones Peak, Blind Spring Hill, Benton, Blind Spring District, Benton Range, Mono Co., California, USA
Cuprosklodowskite
Formula: Cu(UO2)2[HSiO4]2 · 6H2O
Localities: Reported from at least 16 localities in this region.
Photo: © 2008 Peter Cristofono. Cuprosklodowskite from Iron Mountain No. 2 District, Sierra Co., New Mexico, USA
Cuprostibite
Formula: Cu2(Sb,Tl)
Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Cuprotungstite
Formula: Cu2(WO4)(OH)2
Localities: Reported from at least 38 localities in this region.
Photo: © Brent Thorne. Cuprotungstite from Pole Star Copper Company Mine, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
Curetonite (TL)
Formula: Ba4Al3Ti(PO4)4(O,OH)6
Type Locality: Redhouse Barite Mine, Potosi District, Osgood Mts, Humboldt Co., Nevada, USA
Reference: Min Rec 10:4 pp219-221
Photo: © c Knut Eldjarn. Curetonite from Redhouse Barite Mine, Potosi District, Osgood Mts, Humboldt Co., Nevada, USA
Curite
Formula: Pb3(UO2)8O8(OH)6 · 3H2O
Localities: Reported from at least 6 localities in this region.
Cuspidine
Formula: Ca4(Si2O7)(F,OH)2
Localities: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Mackay District (Alder Creek District; White Knob District), Custer Co., Idaho, USA
Commercial quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Riverside Co., California, USA
Cascade Slide, Cascade Mountain, Keene, Essex Co., New York, USA
Buckwheat Dump Mineral Collecting Site, Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Photo: © Christopher O'Neill. Cuspidine from Buckwheat pit, Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Cyanotrichite
Formula: Cu4Al2(SO4)(OH)12 · 2H2O
Localities: Reported from at least 46 localities in this region.
Photo: © 2008, JGW. Cyanotrichite from Grand View Mine, Cape Royal, Horseshoe Mesa, Grand Canyon National Park, Grandview District, Coconino Co., Arizona, USA
'Cymatolite'
Localities: Reported from at least 9 localities in this region.
Photo: © Peter Cristofono. Cymatolite from Parker Mountain Mine, Parker Mountain, Strafford, Strafford Co., New Hampshire, USA
Cymrite
Formula: BaAl2Si2(O,OH)8 · H2O
Localities: Reported from at least 8 localities in this region.
Cyrilovite
Formula: NaFe3+3(PO4)2(OH)4 · 2H2O
Localities: Foote Lithium Co. Mine (Foote Mine), Kings Mountain District, Cleveland Co., North Carolina, USA
Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA
Lone Tree Mine, Buffalo Mountain District, Humboldt Co., Nevada, USA
Unnamed prospect, Valmy, Iron Point District, Humboldt Co., Nevada, USA
Clear Spring Mine, Homeland, Central Florida Phosphate District (Bone Valley), Polk Co., Florida, USA
Photo: Cyrilovite from Silver Coin Mine, Valmy, Iron Point District, Humboldt Co., Nevada, USA
'Dachiardite'
Localities: Reported from at least 7 localities in this region.
Photo: © Dick Dionne. Dachiardite from Opal Hill Mine, Mule Mts, Riverside Co., California, USA
Dachiardite-Ca
Formula: (Ca,Na2,K2)5Al10Si38O96 · 25H2O
Localities: Roadcuts, Altoona, Wahkiakum Co., Washington, USA
Cape Lookout, Tillamook Co., Oregon, USA
Photo: © Dick Dionne. Dachiardite-Ca from Cape Lookout, Tillamook Co., Oregon, USA
Dachiardite-Na
Formula: (Na2,Ca,K2)5Al10Si38O96 · 25H2O
Localities: Yaquina Head Quarry, Agate Beach, Lincoln Co., Oregon, USA
Roadcuts, Altoona, Wahkiakum Co., Washington, USA
Yellowstone National Park, Park Co., Wyoming, USA
Firehole River, Yellowstone National Park, Park Co., Wyoming, USA
Lower Geyser Basin, Yellowstone National Park, Park Co., Wyoming, USA
Photo: © Van King. Dachiardite-Na from Roadcuts, Altoona, Wahkiakum Co., Washington, USA
Dadsonite (TL)
Formula: Pb23Sb25S60Cl
Type Locality: Red Bird Mine, Lovelock, Antelope District, Pershing Co., Nevada, USA
Reference: JAMBOR, J.L. (1967b): New lead sulfantimonides from Madoc, Ontario. 2. Mineral descriptions. Canadian Mineralogist 9, 191-213. JAMBOR, J.L. (1969): Dadsonite (minerals Q and QM), a new lead sulphantimonide. Mineralogical Magazine 37, 437-441. Berry et al. (1952) Am. Min. 37, 438.
'Dahllite'
Localities: Reported from at least 7 localities in this region.
Dalyite
Formula: K2ZrSi6O15
Locality: Gordon Butte, Meagher Co., Montana, USA
Danalite (TL)
Formula: Fe2+4(Be3Si3O12)S
Type Locality: Rockport, Essex Co., Massachusetts, USA
Reference: Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols; Yale Peabody Museum no. 777; Sears, J. H.(1905): The Physical Geography, Geology, Mineralogy and Paleontology of Essex County.
Localities: Recorded from at least 22 other localities in this region.
Photo: © S.M. Whittemore. Danalite from North Sugarloaf Mountain locality, Bethlehem, Grafton Co., New Hampshire, USA
'Danalite-Genthelvite Series'
Locality: Grants Mills, Cumberland, Providence Co., Rhode Island, USA
Photo: Danalite-Genthelvite Series from Grants Mills, Cumberland, Providence Co., Rhode Island, USA
Danburite (TL)
Formula: CaB2Si2O8
Type Locality: Danbury, Fairfield Co., Connecticut, USA
Reference: Shepard, C.U. (1939) Amer J of Sci; Shepard, C.U. (1840): Der Danburit, eine neue Mineralspecies, Annalen der Physik und Chemie, Vol. 126 (2/050), p. 182
Localities: Recorded from at least 21 other localities in this region.
Photo: © Rob Lavinsky. Danburite from Little Three Mine, Ramona, Ramona District, San Diego Co., California, USA
Darapskite
Formula: Na3(SO4)(NO3) · H2O
Localities: Flower Cave, Big Bend National Park, Brewster Co., Texas, USA
Socorro Co., New Mexico, USA
Northeast of Bowie, Peloncillo Mts, Greenlee Co., Arizona, USA
Death Valley, San Bernardino Co., California, USA
Death Valley, Inyo Co., California, USA
Datolite
Formula: Ca(HBSiO5)
Localities: Reported from at least 255 localities in this region.
Photo: © 2002 John H. Betts. Datolite from Prospect Park Quarry, Prospect Park, Passaic Co., New Jersey, USA
Datolite var: Botryolite
Localities: Cheapside Quarry (East Deerfield Quarry; Trew Corp. Quarry), Deerfield, Franklin Co., Massachusetts, USA
Parker Mine (Parker shaft), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Photo: © Rob Lavinsky. Botryolite from Parker Mine, Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Daubréeite
Formula: (BiO)(OH,Cl)
Localities: Reported from at least 6 localities in this region.
Daubréelite
Formula: Fe2+Cr3+2S4
Localities: Reported from at least 20 localities in this region.
Photo: © 2008, JGW. Daubréelite from Norton County meteorite, Norton Co., Kansas, USA
Davanite
Formula: K2TiSi6O15
Locality: Smoky Butte (Smoky Butte Lamproite), Garfield Co., Montana, USA
'Davidite'
Localities: Ross Mine (Highland lode; John Ross Mine), Berne, Custer District, Custer Co., South Dakota, USA
Quijotoa (Covered Wells), Quijotoa District, Quijotoa Mts, Tohono O'odom (Papago) Indian Reservation, Pima Co., Arizona, USA
Linda Lee claims, Quijotoa (Covered Wells), Quijotoa District, Quijotoa Mts, Tohono O'odom (Papago) Indian Reservation, Pima Co., Arizona, USA
Town of Ramapo, Rockland Co., New York, USA
Washington, USA
Photo: © Rob Lavinsky. Davidite from St Peters Dome, Cheyenne District, El Paso Co., Colorado, USA
Davidite-(La)
Formula: (La,Ce)(Y,U,Fe)(Ti,Fe)20(O,OH)38
Localities: Flatrock Quarry (Flat Rock Quarry; Crystal Mall), Waterford, New London Co., Connecticut, USA
Pandora prospect, Quijotoa (Covered Wells), Quijotoa District, Quijotoa Mts, Tohono O'odom (Papago) Indian Reservation, Pima Co., Arizona, USA
Photo: © 2011 Harold Moritz. Davidite-(La) from Flatrock Quarry, Waterford, New London Co., Connecticut, USA
'Davisonite'
Locality: Clay Canyon, Fairfield, Oquirrh Mts, Utah Co., Utah, USA
Dawsonite
Formula: NaAlCO3(OH)2
Localities: Reported from at least 16 localities in this region.
Dawsonite var: Chromian Dawsonite
Locality: Paradise Flat, Rooster Comb, Orestimba District, Diablo Range, Stanislaus Co., California, USA
Deanesmithite (TL)
Formula: (Hg+2)Hg2+3(CrO4)S2O
Type Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Reference: Canadian Mineralogist (1993): 31: 787-793.; Mineralogical Record (1993): 24: 471-475.
Photo: © Knut Eldjarn. Deanesmithite from Clear Creek claim, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Deerite (TL)
Formula: (Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
Type Locality: Laytonville Quarry ("Longvale"; "Longvale Quarry"), Laytonville, Coastal Range, Mendocino Co., California, USA
Reference: Agrell, S.O. (1964), Deerite, howieite, and zussmanite, three new minerals from the Franciscan of the Laytonville district, Mendocino County, California (title only), Am. Min.: 49.; Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Localities: Recorded from at least 10 other localities in this region.
Photo: © Sandro Maggia. Deerite from Laytonville Quarry, Laytonville, Coastal Range, Mendocino Co., California, USA
Delafossite
Formula: CuFeO2
Localities: Reported from at least 23 localities in this region.
Photo: © . Delafossite from Cole Mine, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Delindeite (TL)
Formula: (Na,K)2(Ba,Ca)2(Ti,Fe,Al)3(Si2O7)2O2(OH)2 · 2H2O
Type Locality: Diamond Jo Quarry, Magnet Cove, Hot Spring Co., Arkansas, USA
Reference: Am Min 73:11-12 p 1493
Photo: © JBS 2006. Delindeite from Diamond Jo Quarry, Magnet Cove, Hot Spring Co., Arkansas, USA
Delrioite (TL)
Formula: CaSr(V2O6)(OH)2 · 3H2O
Type Locality: Jo Dandy Mine (Paradox D; Hummer; C; Blackburn; Yellow Bird No. 1; Oversight; Broker), Paradox Valley, Uravan District, Montrose Co., Colorado, USA
Reference: Amer.Min.(1959) 44, 261-264
Localities: Recorded from at least 1 other locality in this region.
Photo: © 2007, JGW. Delrioite from Pahranagat District, Lincoln Co., Nevada, USA
'Deltaite'
Locality: Clay Canyon, Fairfield, Oquirrh Mts, Utah Co., Utah, USA
Delvauxite
Formula: CaFe4(PO4,SO4)2(OH)8 · 4-6H2O not confirmed ·
Localities: Midnite Mine (Midnight Mine; Boyd lease), Turtle Lake, Spokane Indian Reservation, Stevens Co., Washington, USA
Iron Ridge Mines, Iron Ridge District (Neda Iron District), Dodge Co., Wisconsin, USA
Desautelsite (TL)
Formula: Mg6Mn3+2(OH)16[CO3] · 4H2O
Type Locality: Cedar Hill Quarry (Stoltzfuss Quarry), Fulton Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA
Reference: Dunn, P.J., D.R. Peacor & T.D. Palmer (1979), Desautelsite, a new mineral of the pyroaurite group: American Mineralogist: 64: 127-130.
Localities: Recorded from at least 5 other localities in this region.
Photo: © 2004 ROM. Desautelsite from Artinite pit, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Descloizite
Formula: Pb(Zn,Cu)(VO4)(OH)
Localities: Reported from at least 154 localities in this region.
Photo: Descloizite from Collins Mine, Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Descloizite var: Cuprian Descloizite
Formula: Pb(Zn,Cu)VO4OH
Localities: Reported from at least 25 localities in this region.
Photo: © Brent Thorne. Cuprian Descloizite from Dewey - White Swan Prospects, Caballo Mountain District, Sierra Co., New Mexico, USA
Descloizite var: Dechenite
Formula: PbZn(VO4,AsO4)(OH)
Localities: Evening Star Mine, Carbonate Hill, Leadville, Leadville District, Lake Co., Colorado, USA
Morning Star Mine, Carbonate Hill, Leadville, Leadville District, Lake Co., Colorado, USA
Aetna Mine (Ætna Mine), Carbonate Hill, Leadville, Leadville District, Lake Co., Colorado, USA
'Desert Rose'
Locality: Saint David area, Cochise Co., Arizona, USA
Photo: © 2007 Peter Cristofono. Desert Rose from Saint David area, Cochise Co., Arizona, USA
Despujolsite ?
Formula: Ca3Mn4+(SO4)2(OH)6 · 3H2O
Locality: Apache Warm Springs beryllium deposit, Ojo Caliente No. 2 District, Socorro Co., New Mexico, USA
Destinezite (TL)
Formula: Fe3+2(PO4)(SO4)(OH) · 6H2O
Type Locality: Alum Cave Bluff, Great Smoky Mountains National Park, Sevier Co., Tennessee, USA
Reference: American Mineralogist (2000): 85: 266.; Rocks & Min. (2007) 82:235
Devilline
Formula: CaCu4(SO4)2(OH)6 · 3H2O
Localities: Reported from at least 34 localities in this region.
Photo: © Brent Thorne. Devilline from Mammoth Mine, Mammoth, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Devilline var: Zincian Devilline
Locality: Steppe Mine (Steppe claim; Little Mary Mine), Mildren Mine group, Ko Vaya, Cababi District (Comobabi District), Comobabi Mts, Tohono O'odom (Papago) Indian Reservation, Pima Co., Arizona, USA
Devitoite (TL)
Formula: [Ba6(PO4)2(CO3)][Fe2+7(OH)4Fe3+2O2(Si4O12)2]
Type Locality: Esquire No. 8 claim (Lander's Gillespite locality), Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Reference: Kampf, A.R., Rossman, G.R., Steele, I.M., Pluth, J.J., Dunning, G.E., Walstrom, R.E. (2010): Devitoite, a new heterophyllosilicate with astrophyllite-like layers from eastern Fresno County, California. Canadian Mineralogist, 48, 29-40.
Photo: © 2010, JGW. Devitoite from Esquire No. 8 claim, Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
'Deweylite'
Formula: Mg4Si3O10 · 6H2O ?
Localities: Reported from at least 44 localities in this region.
Photo: © M.Heintzelman. Deweylite from Mineral Hill, Elwyn, Middletown Township, Delaware Co., Pennsylvania, USA
Dewindtite
Formula: H2Pb3(UO2)2(PO4)4O4 · 12H2O
Localities: Uranyl-phosphate mineral locality, New London, Merrimack Co., New Hampshire, USA
Harden Creek, Stanley, Stanley Basin District, Custer Co., Idaho, USA
Hay Creek, Stanley, Stanley Basin District, Custer Co., Idaho, USA
Stanley Basin District, Custer Co., Idaho, USA
Diaboleite
Formula: Pb2CuCl2(OH)4
Localities: Reported from at least 10 localities in this region.
Photo: © . Diaboleite from Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Diadochite
Formula: Fe3+2(PO4)(SO4)(OH) · 5H2O
Localities: Reported from at least 41 localities in this region.
Photo: © 2005 JBS. Diadochite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Diamond
Formula: C
Localities: Reported from at least 145 localities in this region.
Photo: © . Diamond from Crater of Diamonds State Park, Murfreesboro, Pike Co., Arkansas, USA
Diaoyudaoite
Formula: NaAl11O17
Localities: Newark Bay, Newark, Essex Co., New Jersey, USA
Chester Emery Mines slag locality, Chester Emery Mines, Chester, Hampden Co., Massachusetts, USA
Photo: © 2010 Peter Cristofono. Diaoyudaoite from Chester Emery Mines slag locality, Chester Emery Mines, Chester, Hampden Co., Massachusetts, USA
Diaphorite
Formula: Ag3Pb2Sb3S8
Localities: Reported from at least 8 localities in this region.
Photo: © 2008 Jesse Crawford. Diaphorite from Keyser Mine, Morey District, Nye Co., Nevada, USA
Diaspore
Formula: AlO(OH)
Localities: Reported from at least 92 localities in this region.
Photo: © Jim Chenard. Diaspore from Chester Emery Mines, Chester, Hampden Co., Massachusetts, USA
'Diatomaceous Earth'
Localities: Reported from at least 37 localities in this region.
Dickinsonite-(KMnNa) (TL)
Formula: {KNa}{Mn2+◻}{Ca}{Na3}{Mn2+13}{Al}(PO4)12(OH)2
Type Locality: Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Ridgefield, Fairfield Co., Connecticut, USA
Habit: foliated crystalline masses, almost micaceous, radiating or stellated curved laminae
Colour: oil to olive green, dark to grass-green
Description: Intimately associated with quartz, eosphorite, triploidite and rhodochrosite
Reference: Brush and Dana (1878); American Mineralogist (1946): 31: 329-345; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 671, 718, 855.; Rocks & Minerals (1995) 70:396-409
Localities: Recorded from at least 22 other localities in this region.
Photo: © Van King. Dickinsonite-(KMnNa) from Fillow Quarry, Branchville, Ridgefield, Fairfield Co., Connecticut, USA
Dickite
Formula: Al2(Si2O5)(OH)4
Localities: Reported from at least 156 localities in this region.
Photo: © M.Heintzelman. Dickite from Saint Clair, Schuylkill Co., Pennsylvania, USA
Dickthomssenite (TL)
Formula: Mg(V2O6) · 7H2O
Type Locality: Firefly–Pigmay Mine, La Sal Quadrangle, San Juan Co., Utah, USA
Reference: Canadian Mineralogist (2001) 39, pp. 1691-1700
Localities: Recorded from at least 2 other localities in this region.
Photo: © Brent Thorne. Dickthomssenite from Firefly–Pigmay Mine, La Sal Quadrangle, San Juan Co., Utah, USA
Dietrichite
Formula: (Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2O
Localities: Gold Hill Mine (Western Utah Mine), Gold Hill, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
Ducktown District, Polk Co., Tennessee, USA
Photo: © Brent Thorne. Dietrichite from Gold Hill Mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele Co., Utah, USA
Digenite
Formula: Cu9S5
Localities: Reported from at least 136 localities in this region.
Photo: © 2002 John H. Betts. Digenite from Eagle Mine, Gilman, Gilman District, Eagle Co., Colorado, USA
Diopside
Formula: CaMgSi2O6
Localities: Reported from at least 964 localities in this region.
Photo: © 2005 Peter Cristofono. Diopside from Belvidere Mountain Quarries, Lowell & Eden, Orleans & Lamoille Cos., Vermont, USA
Diopside var: Canaanite
Localities: Litchfield Co., Connecticut, USA
Goos Quarry, Waterford, New London Co., Connecticut, USA
Diopside var: Chromian Diopside
Formula: (Ca,Cr)MgSi2O6
Localities: Reported from at least 25 localities in this region.
Photo: Chromian Diopside from Belvidere Mountain Quarries, Lowell & Eden, Orleans & Lamoille Cos., Vermont, USA
Diopside var: Diallage
Localities: Reported from at least 15 localities in this region.
Diopside var: Schefferite
Formula: (Ca,Mn)(Mg,Fe,Mn)Si2O6
Localities: Marquette Co., Michigan, USA
Franklin Mining District, Sussex Co., New Jersey, USA
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Champion Mine (Beacon Mine), Champion, Marquette iron range, Marquette Co., Michigan, USA ? (more information)
Photo: © 2009, JGW. Schefferite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
'Diopside-Hedenbergite Series'
Localities: Reported from at least 6 localities in this region.
Photo: © R. Barney. Diopside-Hedenbergite Series from White Rock prospect, Corral Canyon District, Churchill Co., Nevada, USA
Dioptase
Formula: CuSiO3 · H2O
Localities: Reported from at least 69 localities in this region.
Photo: © François Périnet. Dioptase from Christmas Mine, Christmas, Christmas area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA
Dissakisite-(Ce)
Formula: {CaCe}{Al2Mg}(Si2O7)(SiO4)O(OH)
Locality: Henry Rudy farm, Edenite Hill, Edenville, Town of Warwick, Orange Co., New York, USA
Djerfisherite
Formula: K6(Fe,Cu,Ni)25S26Cl
Localities: Coyote Peak, Coastal Range, Humboldt Co., California, USA
Pena Blanca Spring meteorite, Gage Ranch, Marathon, Brewster Co., Texas, USA
Bishopville meteorite, Bishopville, Lee Co., South Carolina, USA
Djurleite
Formula: Cu31S16
Localities: Reported from at least 60 localities in this region.
Photo: © db. Djurleite from California State Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Dolomite
Formula: CaMg(CO3)2
Localities: Reported from at least 2403 localities in this region.
Photo: © Van King. Dolomite from Walworth Quarry, Walworth, Wayne Co., New York, USA
Dolomite var: Ferroan Dolomite
Localities: Reported from at least 72 localities in this region.
Photo: © Alan Goldstein. Ferroan Dolomite from State Route 37 roadcut, Harrodsburg, Monroe Co., Indiana, USA
Dolomite var: Manganoan Dolomite
Locality: Hock Hocking Mine, Alma, Alma District, Park Co., Colorado, USA
Dolomite var: Mg-rich Dolomite
Formula: (Ca,Mg)Mg(CO3)2
Localities: Scratch Awl Mine (Scratch All Mine; Silver Prince; Cliff; Salmon; Blackmail Mine), Philipsburg District (Flint Creek District), Granite Co., Montana, USA
Trout Mine (Gem; Algonquin Group; Speckled Trout; Pocahontas; Brooklyn; Kitty Clyde; Neversweat), Philipsburg District (Flint Creek District), Granite Co., Montana, USA
Algonquin Mine (West Algonquin; Trout-Algonquin Mine), Philipsburg District (Flint Creek District), Granite Co., Montana, USA
Dolomite var: Zincian Dolomite
Formula: Ca(Mg,Zn)(CO3)2
Locality: Steppe Mine (Steppe claim; Little Mary Mine), Mildren Mine group, Ko Vaya, Cababi District (Comobabi District), Comobabi Mts, Tohono O'odom (Papago) Indian Reservation, Pima Co., Arizona, USA
Doloresite (TL)
Formula: V4+3O4(OH)4
Type Locality: La Sal No. 2 Mine, Beaver Mesa, Mesa Co., Colorado, USA
Description: Doloresite is one of the many new minerals first discovered as a by-product of the Colorado Plateau uranium rush of 1946-1955. It occurs in relatively unoxidized vanadium-uranium ores and is associated with coffinite, uraninite, clausthalite, montroseite
Reference: Am Min 45 (1960), 1144; "Minerals of Colorado, updated & revised", pp. 185-186, by Eckel, Edwin B., 1997
Localities: Recorded from at least 25 other localities in this region.
Photo: © 2007, JGW. Doloresite from Grants District, Cibola Co., New Mexico, USA
Domeykite
Formula: Cu3As
Localities: Reported from at least 29 localities in this region.
Photo: © Brent Thorne. Domeykite from Cashin Mine, La Sal District, Montrose Co., Colorado, USA
Donbassite
Formula: Al4.33(AlSi3O10)(OH)8
Locality: Nesquehoning Coal Mine, Nesquehoning, Lansford, Carbon Co., Pennsylvania, USA
Photo: Donbassite from Nesquehoning Coal Mine, Nesquehoning, Lansford, Carbon Co., Pennsylvania, USA
Donharrisite
Formula: Ni8Hg3S9
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © Knut Eldjarn. Donharrisite from Clear Creek claim, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Donpeacorite (TL)
Formula: (Mn2+,Mg)Mg[SiO3]2
Type Locality: ZCA No. 4 Mine (St Joe Mine), Balmat, Balmat-Edwards Zinc District, St. Lawrence Co., New York, USA
Reference: Fleischer's Glossary of Mineral Species 2004; Rocks & Minerals 82:472-483
Photo: © 2007, JGW. Donpeacorite from ZCA No. 4 Mine, Balmat, Balmat-Edwards Zinc District, St. Lawrence Co., New York, USA
Dorrite (TL)
Formula: Ca4(Mg3Fe3+9)O4(Si3Al8Fe3+O36)
Type Locality: Durham Ranch, Reno Junction, Campbell Co., Wyoming, USA
Reference: Amer.Min.(1988) 73, 1440-1448
Localities: Recorded from at least 1 other locality in this region.
Downeyite (TL)
Formula: SeO2
Type Locality: Forestville, Schuylkill Co., Pennsylvania, USA
Reference: Finkelman, R.B. & Mrose, M.E. (1977) American Mineralogist: 62,316-320.
Localities: Recorded from at least 1 other locality in this region.
Photo: © Ł Kruszewski 08. Downeyite from Burnside, Northumberland Co., Pennsylvania, USA
Doyleite
Formula: Al(OH)3
Locality: Gold Quarry Mine (Maggie claims; Nevada Bureau of Mines & Geology Sample Site No. 1560; Deep West Ore Body), Maggie Creek Subdistrict, Carlin Trend, Eureka Co., Nevada, USA
Dozyite
Formula: Mg7Al2(Al2Si4O15)(OH)12
Locality: Wood's Chrome Mine (Wood's Mine), Texas, Little Britain Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA
Photo: © 2010, JGW. Dozyite from Wood's Chrome Mine, Texas, Little Britain Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA
Dravite
Formula: Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Localities: Reported from at least 103 localities in this region.
Photo: © Maggie Wilson. Dravite from Power's Farm, Pierrepont, St. Lawrence Co., New York, USA
Dravite var: Chromian Dravite
Localities: Line pit (Lowe's Mine), State Line District, Cecil Co., Maryland, USA
Line pit (Lowe's Chromite Mine), Fulton Township, State Line Chromite District, Lancaster Co., Pennsylvania, USA
'Dravite-Schorl Series'
Localities: Guy Hill pegmatite area, Jefferson Co., Colorado, USA
Van Bibber Creek pegmatite (Dry Creek), Jefferson Co., Colorado, USA
Big Boulder Mine (Big Boulder Beryl Mine), Crystal Mountain Pegmatite District (Storm Mountain District), Larimer Co., Colorado, USA
Audrey Lynn Mine (Audrey Lynne mine), Little Cahuilla Mountain, Cahuilla, Cahuilla District, Riverside Co., California, USA ? (more information)
'Dravite-Uvite Series'
Localities: Reported from at least 7 localities in this region.
Photo: Dravite-Uvite Series from Harlem Ship Canal, Manhattan, New York City, New York, USA
Dufrénite
Formula: Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O
Localities: Reported from at least 38 localities in this region.
Photo: © Peter Haas. Dufrénite from Midvale Mine, South Mountain, Midvale, Rockbridge Co., Virginia, USA
Dufrénoysite
Formula: Pb2As2S5
Localities: Reported from at least 13 localities in this region.
Duftite
Formula: PbCu(AsO4)(OH)
Localities: Reported from at least 54 localities in this region.
Photo: Duftite from Centennial Eureka Mine, Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Dugganite (TL)
Formula: Pb3Zn3(AsO4)2(TeO6)
Type Locality: Emerald Mine, Silver Plume Mine (Emerald & Silver Plume Mine group), Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 209; Williams, S.A. (1978), Khinite, parakhinite and dugganite, three new tellurates from Tombstone, AZ, Am.Min.: 63: 1016-1019.
Localities: Recorded from at least 10 other localities in this region.
Photo: © Brent Thorne 2007. Dugganite from Trixie Mine, East Tintic District, East Tintic Mts, Utah Co., Utah, USA
Dumontite
Formula: Pb2(UO2)3(PO4)2(OH)4 · 3H2O
Localities: Reported from at least 9 localities in this region.
Photo: © Elmar Lackner. Dumontite from Green Monster Mine, Goodsprings District, Clark Co., Nevada, USA
Dumortierite
Formula: (Al,Fe3+)7(SiO4)3(BO3)O3
Localities: Reported from at least 86 localities in this region.
Photo: © Caltech. Dumortierite from Dehesa, San Diego Co., California, USA
Dundasite
Formula: PbAl2(CO3)2(OH)4 · H2O
Localities: Reported from at least 7 localities in this region.
Photo: © 2004 ROM. Dundasite from Juanita Mine, Magdalena District, Socorro Co., New Mexico, USA
'Dunhamite'
Formula: PbTeO3(?)
Localities: Organ District, Organ Mts, Doña Ana Co., New Mexico, USA
Grand Central Mine, Contention-Grand Central Mine group, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Hilltop Mine, Organ District, Organ Mts, Doña Ana Co., New Mexico, USA
Joe Mine (Joe shaft), Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA ? (more information)
Durangite
Formula: NaAl(AsO4)F
Localities: Reported from at least 6 localities in this region.
Photo: © D. Richerson. Durangite from Thomas Range, Juab Co., Utah, USA
Dussertite
Formula: BaFe3+3(AsO4)2(OH)5
Localities: Wells District, Elko Co., Nevada, USA
Tecoma District, Elko Co., Nevada, USA
Rain Mine, Carlin District, Elko Co., Nevada, USA
Unnamed prospect (2), Rhyolite Pass, Luning, Fitting District, Mineral Co., Nevada, USA
Goldstrike Mine, Lynn District, Eureka Co., Nevada, USA
Photo: © Rockpick Legend Co.. Dussertite from Tecoma Mine, Lucin District, Pilot Range, Box Elder Co., Utah, USA
Duttonite (TL)
Formula: V4+O(OH)2
Type Locality: Peanut Mine, Bull Canyon, Uravan District, Montrose Co., Colorado, USA
Reference: [Science (1956) 123, 990; Clark, 1993 - "Hey's Mineral Index"]
Localities: Recorded from at least 4 other localities in this region.
Photo: © Walter R. Kellogg. Duttonite from Peanut Mine, Bull Canyon, Uravan District, Montrose Co., Colorado, USA
Dypingite
Formula: Mg5(CO3)4(OH)2 · 5H2O
Localities: Reported from at least 6 localities in this region.
Photo: © 2008, JGW. Dypingite from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Dyscrasite
Formula: Ag3Sb
Localities: Reported from at least 17 localities in this region.
Dzhalindite
Formula: In(OH)3
Locality: Flambeau Mine, Ladysmith, Rusk Co., Wisconsin, USA
Dzharkenite
Formula: FeSe2
Locality: Cactus Rat Mine, Cisco, Yellow Cat District (W. part of Thompsons District), Grand Co., Utah, USA
Photo: © Brent Thorne 2011. Dzharkenite from Cactus Rat Mine, Cisco, Yellow Cat District, Grand Co., Utah, USA
Eakerite (TL)
Formula: Ca2SnAl2Si6O18(OH)2 · 2H2O
Type Locality: Foote Lithium Co. Mine (Foote Mine), Kings Mountain District, Cleveland Co., North Carolina, USA
Description: Only locality for crystals. Topaz-like prismatic crystals up to 5/8ths inch.
Reference: Jan H.Bernard and Jaroslav Hyrsl,2004,Minerals and their Localities,pg #190; Rocks and Minerals, (1985) 60:76-82; Carolina Geological Society Field Trip Guidebook 1981, 39-48
Photo: © D. Preite - M.C.. Eakerite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Earlshannonite (TL)
Formula: Mn2+Fe3+2(PO4)2(OH)2 · 4H2O
Type Locality: Foote Lithium Co. Mine (Foote Mine), Kings Mountain District, Cleveland Co., North Carolina, USA
Habit: prismatic, radiating, "sea-mines"
Colour: brown to brownish red to orange-yellow
Reference: Peacor, D. R. et al (1984) Canadian Mineralogist: 22: 471-474.; Rocks and Minerals, (1985) 60:76-82
Localities: Recorded from at least 4 other localities in this region.
Photo: © 2005 JBS. Earlshannonite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Eastonite (TL)
Formula: KMg2Al(Al2Si2O10)(OH)2
Type Locality: C.K. Williams & Co. Quarry (Williams Quarry), Chestnut Hill, Easton, Forks Township, Northampton Co., Pennsylvania, USA
Habit: Rough crystals, cleavage masses. Laminae flexible but inelastic
Colour: Silvery white to bright yellowish green, vitreous with pearly luster
Fluorescence: none
Description: Described first as "Chloritic Vermiculite" by Clarke and Schneider in 1891. Likely the same material as described by professor Frederick Burritt Peck in 1905 as an "alteration of phlogopite to serpentine", noting specimens from both Chestnut Hill and from the continuation of the serpentine belt at Warne's quarry (Royal Green Quarry), across the Delaware river in Phillipsburg, New Jersey. Analysis by Merril and by Eyerman in 1911.
Reference: The Mineralogy of Pennsylvania; Samual G. Gordon 1922; Pg 119 The Talc Deposits of Phillipburg, N.J. and Easton; Peck, F. B., Trenton 1905 8vo., 26pp
Photo: © M.Heintzelman. Eastonite from C.K. Williams & Co. Quarry, Chestnut Hill, Easton, Forks Township, Northampton Co., Pennsylvania, USA
Ecdemite
Formula: Pb6Cl4(As2O7)
Localities: Defense Mine, Panamint Valley, Lookout District (Modoc District), Inyo Co., California, USA
Cooper Mine, Rochester District (Rabbit District), Madison Co., Montana, USA
Mutch Mine, Rochester District (Rabbit District), Madison Co., Montana, USA
Photo: Ecdemite from Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Eckermannite
Formula: NaNa2(Mg4Al}Si8O22(OH)2
Localities: Coyote Peak, Coastal Range, Humboldt Co., California, USA
Troutman Draw, Pearl District, Jackson Co., Colorado, USA
Snowy Range Mine, Lake Albion, Boulder Co., Colorado, USA
Yankee Creek Mine, Iditarod District, Yukon-Koyukuk Borough, Alaska, USA
Hurricane Mountain localities, North Conway, Conway, Carroll Co., New Hampshire, USA
Photo: Eckermannite from Coyote Peak, Coastal Range, Humboldt Co., California, USA
Eckhardite (TL)
Formula: (Ca,Pb)Cu2+Te6+O5(H2O)
Type Locality: Aga Mine, Otto Mountain, Baker, San Bernardino Co., California, USA
Habit: Acicular
Colour: blue green
Reference: Kampf, A.R., Mills, S.J., Housley, R.M., Rossman, G.R., Marty, J. and Thorne, B. (2013) Eckhardite, IMA 2012-085. CNMNC Newsletter No. 16, August 2013, page 2696; Mineralogical Magazine, 77, 2695-2709
Localities: Recorded from at least 1 other locality in this region.
Photo: © 2012 Chuck Adan. Eckhardite from Bird Nest drift, Otto Mountain, Baker, San Bernardino Co., California, USA
Eclarite
Formula: (Cu,Fe)Pb9Bi12S28
Localities: Abril Mine (Dos Hermanos Mine; Herrera Mine), Cochise Stronghold, Middle Pass District, Dragoon Mts, Cochise Co., Arizona, USA
Gordon Camp, Middle Pass District, Dragoon Mts, Cochise Co., Arizona, USA
Nello Teer Crabtree Creek Quarry (Superior Stone Quarry; Crabtree Quarry; Nello Teer Quarry), Raleigh, Wake Co., North Carolina, USA
Edenite (TL)
Formula: {Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
Type Locality: Edenville, Town of Warwick, Orange Co., New York, USA
Reference: American Mineralogist, 63, pp. 1023-1052 (1978)
Localities: Recorded from at least 38 other localities in this region.
Photo: © Caltech. Edenite from Arnold Mine, Fowler, St. Lawrence Co., New York, USA
Edgarbaileyite (TL)
Formula: (Hg-Hg)3Si2O7
Type Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Reference: Mineralogical Record: 21: 215-220.; Mineralogical Record (1993): 24: 471-475.
Localities: Recorded from at least 5 other localities in this region.
Photo: © Maurice de Graaf. Edgarbaileyite from Clear Creek claim, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Edingtonite
Formula: Ba[Al2Si3O10] · 4H2O
Localities: Ash Creek locality, Ash Creek, Pieta, Mendocino Co., California, USA
Esquire No. 8 claim (Lander's Gillespite locality), Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Photo: © Van King. Edingtonite from Ash Creek locality, Ash Creek, Pieta, Mendocino Co., California, USA
Edoylerite (TL)
Formula: Hg2+3(CrO4)S2
Type Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Description: White paper available upon request
Reference: Mineralogical Record (1993): 24(6): 471-480; Dunning, Hadley, Cooper, Magnasco collections
Photo: © Thomas Witzke. Edoylerite from Clear Creek claim, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Eggletonite (TL)
Formula: (Na,K,Ca)2(Mn,Fe)8(Si,Al)12O29(OH)7 · 11H2O
Type Locality: Big Rock Quarry (3M Quarry; Arch Street Pike Quarry), Granite Mountain area, Little Rock, Pulaski Co., Arkansas, USA
Reference: Peacor, D., Dunn, P. J. & Simmons, W. B. (1984): Eggletonite, the Na analogue of ganophyllite. Mineralogical Magazine. 48, 93-96.; Min News (1991) 7:5 pp 4,5
Localities: Recorded from at least 1 other locality in this region.
Photo: © Knut Eldjarn. Eggletonite from Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski Co., Arkansas, USA
Eglestonite (TL)
Formula: (Hg2+2)3OCl3(OH)
Type Locality: Terlingua District, Brewster Co., Texas, USA
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 52.
Localities: Recorded from at least 17 other localities in this region.
Photo: © Thomas Witzke. Eglestonite from Terlingua, Terlingua District, Brewster Co., Texas, USA
Ehrleite (TL)
Formula: Ca4Be3Zn2(PO4)6 · 9H2O
Type Locality: Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA
Reference: Rocks & Minerals: 60: 117.
Photo: Ehrleite from Tip Top Mine, Fourmile, Custer District, Custer Co., South Dakota, USA
Eitelite (TL)
Formula: Na2Mg(CO3)2
Type Locality: Carter Oil Company Poulson No. 1 Well, Duchesne Co., Utah, USA
Reference: Am Min 44:326-327
Localities: Recorded from at least 6 other localities in this region.
Photo: © 2007, JGW. Eitelite from Mapco Shrine Hospital No. 1 well, Duchesne Co., Utah, USA
Ekanite
Formula: (Ca,Fe2+,Pb)2(Th,U)[Si8O20]
Locality: Baumann prospect (Bauman Ranch), Dumtah, Tulare Co., California, USA
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Localities: Reported from at least 164 localities in this region.
Photo: © Rob Lavinsky. Elbaite from Dunton Gem Quarry, Newry, Oxford Co., Maine, USA
'Elbaite-Schorl Series'
Localities: Reported from at least 8 localities in this region.
Photo: © J.Ralph. Elbaite-Schorl Series from Chesterfield, Hampshire Co., Massachusetts, USA
'Ellestadite'
Localities: Cascade Slide, Cascade Mountain, Keene, Essex Co., New York, USA
Wet Weather Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Riverside Co., California, USA
Photo: © J.Ralph 2002. Ellestadite from Crestmore quarries, Crestmore, Riverside Co., California, USA
'Ellestadite-(Cl)' (TL)
Formula: Ca10(SiO4)3(SO4)3Cl2
Type Locality: Crestmore quarries, Crestmore, Riverside Co., California, USA
Reference: [American Mineralogist 67 (1982), 90-92; [email protected]]
'Ellestadite-(F)-Ellestadite-(OH) Series'
Locality: Cascade Slide, Cascade Mountain, Keene, Essex Co., New York, USA
Ellisite (TL)
Formula: Tl3AsS3
Type Locality: Carlin Gold mine, Elko, Lynn District, Eureka Co., Nevada, USA
Reference: Am Min 64 (1979), 701; Min.Rec.:20:469.
Elpasolite (TL)
Formula: NaK2[AlF6]
Type Locality: St Peters Dome, Cheyenne District (St. Peters Dome District), El Paso Co., Colorado, USA
Description: Occurs in solution cavities in massive pachnolite.
Reference: Cross and Hillebrand (1883) - "On minerals of the cryolite group recently found in Colorado"; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 114.
Localities: Recorded from at least 4 other localities in this region.
Photo: Elpasolite from Morefield Mine, Winterham, Amelia Co., Virginia, USA
Elpidite
Formula: Na2ZrSi6O15 · 3H2O
Localities: Diamond Jo Quarry, Magnet Cove, Hot Spring Co., Arkansas, USA
Green River formation, Uintah Co., Utah, USA
South Ouray No 1 Well, Uintah Co., Utah, USA
Pajarito Mountain, Otero Co., New Mexico, USA
Jones Mill Quarry (Martin Marietta Quarry; Highway 51 Quarry; Mid-State Quarry), Magnet Cove, Hot Spring Co., Arkansas, USA
Elpidite var: Calcian Elpidite
Formula: (Na,Ca)2ZrSi6O15 · 3H2O
Locality: Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Photo: © Pavel M. Kartashov. Calcian Elpidite from Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
'Elsmoreite Group var: Jixianite'
Formula: Pb(W,Fe3+)2(O,OH)7
Localities: Anderson-Apache mine, Apache No. 2 District, Hidalgo Co., New Mexico, USA
Apache No. 2 District, Hidalgo Co., New Mexico, USA
Photo: © 2009, JGW. Jixianite from Anderson-Apache mine, Apache No. 2 District, Hidalgo Co., New Mexico, USA
Elyite (TL)
Formula: Pb4Cu(SO4)O2(OH)4 · H2O
Type Locality: Caroline tunnel, Ward mine (Silver King mine), Ward District, White Pine Co., Nevada, USA
Reference: Am Min 57:3 pp 364-367
Localities: Recorded from at least 1 other locality in this region.
Photo: Elyite from Ward mine, Ward District, White Pine Co., Nevada, USA
'Emery'
Localities: Reported from at least 30 localities in this region.
Photo: © 2010, JGW. Emery from Wright Mine, Chester Emery Mines, Chester, Hampden Co., Massachusetts, USA
Emmonsite (TL)
Formula: Fe3+2[TeO3]3 · 2H2O
Type Locality: Tombstone, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Reference: Hillebrand, W.F. (1885), Emmonsite, a ferric tellurite, Proceedings Colorado Sci. Soc.: 2: 20-23; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 641; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 232.
Localities: Recorded from at least 26 other localities in this region.
Photo: © Brent Thorne. Emmonsite from Mohawk Mine, Goldfield, Goldfield District, Esmeralda Co., Nevada, USA
Emplectite
Formula: CuBiS2
Localities: Reported from at least 15 localities in this region.
Empressite (TL)
Formula: AgTe
Type Locality: Empress Josephine Mine (Empress Josephine and Boss Mammoth Claims), Bonanza, Bonanza District (Kerber Creek District), Saguache Co., Colorado, USA
Reference: Am Min 49 (1964), 325; American Mineralogist (1930) 15: 272-273
Localities: Recorded from at least 8 other localities in this region.
Photo: © Christopher O'Neill. Empressite from Empress Josephine Mine, Bonanza, Bonanza District, Saguache Co., Colorado, USA
Enargite
Formula: Cu3AsS4
Localities: Reported from at least 350 localities in this region.
Photo: Enargite from Badger Mine, Butte, Butte District, Silver Bow Co., Montana, USA
'Endellite'
Localities: Reported from at least 20 localities in this region.
Englishite (TL)
Formula: K3Na2Ca10Al15(PO4)21(OH)7 · 26H2O
Type Locality: Clay Canyon, Fairfield, Oquirrh Mts, Utah Co., Utah, USA
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 958; UGMS Bull 117 Minerals and Mineral Localities of Utah.
Localities: Recorded from at least 6 other localities in this region.
Photo: © Peter Haas. Englishite from Tip Top Mine, Fourmile, Custer District, Custer Co., South Dakota, USA
Enstatite
Formula: MgSiO3
Localities: Reported from at least 217 localities in this region.
Photo: © DM06. Enstatite from Summit Rock, Klamath Co., Oregon, USA
Enstatite var: Bronzite
Formula: (Mg,Fe2+)2[SiO3]2
Localities: Reported from at least 61 localities in this region.
Photo: © Saul Krotki 2003. Bronzite from Summit Rock, Klamath Co., Oregon, USA
Eosphorite (TL)
Formula: (Mn2+,Fe2+)Al(PO4)(OH)2 · H2O
Type Locality: Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Ridgefield, Fairfield Co., Connecticut, USA
Habit: mostly massive, rare prismatic crystals
Colour: pale pink, grayish-, bluish-, and yellowish-white, white
Description: Intimately associated with quartz, dickinsonite, triploidite and rhodochrosite. Pink, translucent, prismatic crystals to around 1 cm long show rough striae parallel to the long axis, associated with micro encrusting quartz and apatite.
Reference: Brush and Dana (1878); American Mineralogist (1946): 31: 329-345; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 671, 718, 855, 938.; Rocks & Minerals (1995) 70:396-409
Localities: Recorded from at least 42 other localities in this region.
Photo: © Van King. Eosphorite from Crooker Gem Pegmatite Quarries, Newry, Oxford Co., Maine, USA
Ephesite
Formula: LiNaAl2(Al2Si2O10)(OH)2
Localities: Mountain Lake Mine (Jack Mine; Great Western Adit; Great Western Mines; Mountain Lake Group; Great Western Tunnel), Big Cottonwood District, Wasatch Mts, Salt Lake Co., Utah, USA
Big Cottonwood Mine (Great Western Mines; Mountain Lake Group), Big Cottonwood District, Wasatch Mts, Salt Lake Co., Utah, USA
Epididymite
Formula: Na2Be2Si6O15 · H2O
Localities: Quincy, Norfolk Co., Massachusetts, USA
Wind Mountain, Cornudas Mts, Otero Co., New Mexico, USA
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Localities: Reported from at least 2810 localities in this region.
Photo: Epidote from Green Monster Mountain, Prince of Wales Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA
Epidote var: Beryllian Epidote
Locality: Abril Mine (Dos Hermanos Mine; Herrera Mine), Cochise Stronghold, Middle Pass District, Dragoon Mts, Cochise Co., Arizona, USA
Epidote var: Tawmawite
Formula: {Ca2}{(Al,Fe3+,Cr)3}(Si2O7)(SiO4)O(OH)
Locality: New Haven, New Haven Co., Connecticut, USA - erroneously reported
Epidote var: Withamite
Localities: Location 1, Fredericksburg area, Spotsylvania Co., Virginia, USA
Rico District (Pioneer District), Dolores Co., Colorado, USA
'Epidote Group'
Formula: A2 M3(Si2O7)(SiO4)O(OH)
Localities: State Route 30 locality, Long Lake, Hamilton Co., New York, USA
Conway, Franklin Co., Massachusetts, USA
Williamsburg, Hampshire Co., Massachusetts, USA
Owl's Head Mountain, Benton, Grafton Co., New Hampshire, USA
Bulls Ferry Road, North Bergen, North Bergen Township, Hudson Co., New Jersey, USA
Photo: © 2005 Peter Cristofono. Epidote Group from Bethel, Fairfield Co., Connecticut, USA
Epidote-(Pb) (TL)
Formula: {CaPb}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Type Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Reference: Frondel, C.: The minerals of Franklin and Sterling Hill - a checklist (1972); Palache(1935):98; Dunn(1995):Pt3:406.
Localities: Recorded from at least 4 other localities in this region.
Photo: Epidote-(Pb) from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Epidote-(Pb) var: Hancockite (TL)
Formula: {CaPb}{Al2(Fe3+,Mn3+)}(Si2O7)(SiO4)O(OH)
Type Locality: Parker Mine (Parker shaft), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Reference: Penfield, Samuel Lewis and Warren Charles Hyde (1899) Some New Minerals from the Zinc Mines at Franklin, N. J., and Note Concerning the Chemical Composition of Ganomalite, American Journal of Science, third series, v. 8, p. 339-353.
Epistilbite
Formula: CaAl2Si6O16 · 5H2O
Localities: Reported from at least 33 localities in this region.
Photo: © DM 06. Epistilbite from Puu o Ehu Quarry, Kailua, Oahu Island, Honolulu Co., Hawaii, USA
Epsomite
Formula: MgSO4 · 7H2O
Localities: Reported from at least 175 localities in this region.
Photo: © www.mwminerals.com. Epsomite from White Caps Mine, Manhattan, Manhattan District, Nye Co., Nevada, USA
Erdite (TL)
Formula: NaFeS2 · 2H2O
Type Locality: Coyote Peak, Coastal Range, Humboldt Co., California, USA
Description: Occurs as tiny patches peripheral to a large knot of pyrrhotite and rasvumite. Commonly associated with fine-grained, euhedral magnetite crystals.
Reference: Czamanske, G.K., B.F. Leonard & J.R. Clark (1980), Erdite, a new hydrated sodium iron sulfide mineral: American Mineralogist: 65: 506-515; Konnert, J.A. and Evans, H.T. (1980) The crystal structure of erdite, NaFeS2 •2H2O. American Mineralogist: 65: 516-521; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 67, 367; American Mineralogist: (1983) 68: 245-254.
Photo: © 2008, JGW. Erdite from Coyote Peak, Coastal Range, Humboldt Co., California, USA
Ericaite
Formula: Fe2+3(B7O13)Cl
Locality: Venice Salt dome, Plaquemines Parish, Louisiana, USA
Eriochalcite
Formula: CuCl2 · 2H2O
Localities: Hawthorne, Mineral Co., Nevada, USA
Sacaton Mine (Casa Grande Mine; ASARCO Sacaton project), Casa Grande, Pinal Co., Arizona, USA
'Erionite'
Localities: Reported from at least 77 localities in this region.
Photo: © Chinellato Matteo. Erionite from Phelps Dodge Corporation Well No. 1, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA
Erionite-Ca
Formula: (Ca,K2,Na2)2[Al4Si14O36] · 15H2O
Localities: Reported from at least 6 localities in this region.
Photo: © O. Dziallas. Erionite-Ca from Ajo District, Pima Co., Arizona, USA
Erionite-K (TL)
Formula: (K2,Ca,Na2)2[Al4Si14O36] · 15H2O
Type Locality: Rome, Marion Co., Oregon, USA
Reference: The Canadian Mineralogist Vol. 35, pp. 1571-1606 (1997)
Localities: Recorded from at least 12 other localities in this region.
Photo: Erionite-K from North Railway Cut, Malpais Hill, Dudleyville, Pinal Co., Arizona, USA
Erionite-Na (TL)
Formula: (Na2,K2,Ca)2[Al4Si14O36] · 15H2O
Type Locality: Cady Mts, San Bernardino Co., California, USA
Reference: Am.Min. 83 (1998), 577
Localities: Recorded from at least 3 other localities in this region.
Photo: © . Erionite-Na from Durkee Fire Opal Mine, Durkee, Baker Co., Oregon, USA
Erlichmanite (TL)
Formula: OsS2
Type Locality: MacIntosh Mine, Willow Creek (China Flat), Willow Creek District, Klamath Mts, Humboldt Co., California, USA
Description: Occurs as small grains about 20 microns.
Reference: Dana's New Mineralogy; Pemberton, H. Earl (1983), Minerals of California: 63.; Snetsinger, K.G. (1971b) Erlichmanite (OsS2), a new mineral. American Mineralogist: 56: 1501-1506.
Localities: Recorded from at least 10 other localities in this region.
Ernstite
Formula: (Mn2+,Fe3+)Al(PO4)(OH,O)2 · H2O
Localities: White Cap Mine (King Mica Mine; Primer), Keystone, Keystone District, Pennington Co., South Dakota, USA
Palermo No. 1 Mine (Palermo No. 1 pegmatite), Groton, Grafton Co., New Hampshire, USA ? (more information)
Keystone District, Pennington Co., South Dakota, USA ? (more information)
Erythrite
Formula: Co3(AsO4)2 · 8H2O
Localities: Reported from at least 110 localities in this region.
Photo: © T.Kennedy 2002. Erythrite from San Bernardino Co., California, USA
Erythrosiderite
Formula: K2[Fe3+Cl5(H2O)]
Locality: Carlsbad Potash District, Eddy and Lea Counties, New Mexico, USA
Eskebornite
Formula: CuFeSe2
Localities: Gold Circle District (Midas District), Elko Co., Nevada, USA
Rifle Mine (Oriole Claims; Rifle Creek Mine; North Star Claims), East Rifle Creek area, Garfield Co., Colorado, USA ? (more information)
Garfield Mine, East Rifle Creek area, Garfield Co., Colorado, USA ? (more information)
Eskimoite
Formula: Ag7Pb10Bi15S36
Localities: Manhattan District, Nye Co., Nevada, USA
Flathead Mine (Hog Heaven Project), Kofford Ridge, Hog Heaven District (Flathead District), Flathead Co., Montana, USA
Wombat Mine, Montezuma Area, Summit Co., Colorado, USA
Idarado Mine, Telluride, Ouray District (Uncompahgre District), San Miguel Co., Colorado, USA
St. Charles Mine, Darwin, Darwin District, Darwin Hills, Inyo Co., California, USA
Photo: © 2007, JGW. Eskimoite from Manhattan District, Nye Co., Nevada, USA
Eskolaite
Formula: Cr2O3
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © 2011, JGW. Eskolaite from Clear Creek claim, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Esperite (TL)
Formula: PbCa2Zn3(SiO4)3
Type Locality: Parker Mine (Parker shaft), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Habit: massive
Colour: white to creamy, dingy
Fluorescence: bright yellow-green
Description: Massive, in nodules up to 15 cm, associated with hardystonite, willemite, franklinite, less commonly calcite, clinohedrite, and axinite-(Mn).
Reference: Palache (1935): 81; Dunn(1995): Pt3: 368.
Localities: Recorded from at least 3 other localities in this region.
Photo: Esperite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Esseneite (TL)
Formula: CaFe3+[AlSiO6]
Type Locality: Durham Ranch, Reno Junction, Campbell Co., Wyoming, USA
Reference: Am.Min. 72 (1987), 148
Ettringite
Formula: Ca6Al2(SO4)3(OH)12 · 26H2O
Localities: Commercial quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Riverside Co., California, USA
US highway 5 road cut, Putney, Windham Co., Vermont, USA
Virginia, USA
Lucky Cuss Mine (Escondido Mine; Escondido claims; McCann Mine; Wedge Mine), Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Hightown, Highland Co., Virginia, USA
Photo: © DM06. Ettringite from Commercial quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Riverside Co., California, USA
Eucairite
Formula: AgCuSe
Localities: Reported from at least 6 localities in this region.
Photo: © Rob Lavinsky. Eucairite from Cougar Mine, Slick Rock District, San Miguel Co., Colorado, USA
Euchroite
Formula: Cu2(AsO4)(OH) · 3H2O
Localities: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Copper Cliff Mine (Cramer Creek Cu deposit), Copper Cliff District, Missoula Co., Montana, USA
Number Eight mine (Blue Star mine), Lynn District, Eureka Co., Nevada, USA
Photo: © Brent Thorne. Euchroite from Copper Cliff Mine, Copper Cliff District, Missoula Co., Montana, USA
Euclase
Formula: BeAl(SiO4)(OH)
Localities: Reported from at least 30 localities in this region.
Photo: © S.M. Whittemore. Euclase from Chandler Mine, Raymond, Rockingham Co., New Hampshire, USA
Eucryptite (TL)
Formula: LiAlSiO4
Type Locality: Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Ridgefield, Fairfield Co., Connecticut, USA
Habit: pseudomorphous after spodumene
Colour: white to slightly greenish-white or pale gray
Fluorescence: red
Description: oriented intergrowth with very fine-grained, elongated albite. Grains are oriented perpendicular to the spodumene c axis and give an indistinct fibrous to columnar structure, this being always at right angles to the adjoining surface of the original mineral. Fractured surface typically has a frosty appearance.
Reference: Brush and Dana (1880); AmMin 31:329-345 (1946); USGS Prof Paper 255; Rocks & Minerals (1995) 70:396-409; Ronald Januzzi collection
Localities: Recorded from at least 11 other localities in this region.
Photo: © JBS 2006. Eucryptite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Eudialyte
Formula: Na15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Localities: Reported from at least 20 localities in this region.
Photo: © SMS 2006. Eudialyte from Point of Rocks Quarry, Point of Rocks Mesa, Springer, Colfax Co., New Mexico, USA
Eudialyte Group var: Eucolite
Localities: Wausau Plateau, Rib Mountain, Marathon Co., Wisconsin, USA
Miller Mountain, Corudas Mts, Hudspeth Co., Texas, USA
Pump Station Hills, Corudas Mts, Hudspeth Co., Texas, USA
Eudialyte pegmatite, Magnet Cove, Hot Spring Co., Arkansas, USA
Eugenite
Formula: Ag11Hg2
Localities: Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Southwest Mine, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Back Forty Deposit, Menominee Co., Michigan, USA
Huron River Uranium prospect (Unnamed V prospect; MRDS - 10171055), Huron River, Baraga Co., Michigan, USA
Eugsterite
Formula: Na4Ca(SO4)3 · 2H2O
Locality: Eagle Borax Spring, Death Valley, Inyo Co., California, USA
Eulytine
Formula: Bi4(SiO4)3
Localities: San Diego Co., California, USA
Pala District, San Diego Co., California, USA
Linka Mine (Garnetite mine), Spencer Hot Springs District, Lander Co., Nevada, USA
Elizabeth R. Mine (Hazel W. claim), Chief Mountain, Pala, Pala District, San Diego Co., California, USA
Blue Bell Mine (Blue Bell claims; Hard Luck Mine; Hard Luck claims; Atkinson), Baker, Soda Lake Mts, San Bernardino Co., California, USA
Photo: © JM-2013. Eulytine from Blue Bell Mine, Baker, Soda Lake Mts, San Bernardino Co., California, USA
Eurekadumpite (TL)
Formula: (Cu,Zn)16(TeO3)2(AsO4)3Cl(OH)18 · 7H2O
Type Locality: Centennial Eureka Mine (Blue Rock), Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Reference: Pekov I.V., Chukanov N.V., Zadov A.E., Roberts A.C., Jensen M.C., Zubkova N.V., Nikischer A.J. (2010) Eurekadumpite, (Cu,Zn)16(TeO3)2(AsO4)3Cl(OH)18·7H2O, a new supergene mineral // Zapiski RMO, in press.
Localities: Recorded from at least 2 other localities in this region.
Photo: © Brent Thorne 2010. Eurekadumpite from Centennial Eureka Mine, Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ti,Ta)2O6
Localities: Reported from at least 144 localities in this region.
Photo: © 2004 ROM. Euxenite-(Y) from Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
'Evansite'
Formula: Al3(PO4)(OH)6 · 6H2O
Localities: Reported from at least 7 localities in this region.
Eveite
Formula: Mn2+2(AsO4)(OH)
Localities: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA (more information)
Ewaldite (TL)
Formula: Ba(Ca,Y,Na,K)(CO3)2
Type Locality: Diamond Alkali Daco No. 3, Green River Formation, Sweetwater Co., Wyoming, USA
Reference: American Mineralogist: 56: 2156.
Eztlite
Formula: Pb2Fe3+6(Te4+O3)3(Te6+O6)(OH)10 · 8H2O
Localities: Otto Mountain, Baker, San Bernardino Co., California, USA
Bird Nest drift, Otto Mountain, Baker, San Bernardino Co., California, USA
Photo: © Brent Thorne 2013. Eztlite from Bird Nest drift, Otto Mountain, Baker, San Bernardino Co., California, USA
Faheyite
Formula: (Mn,Mg,Na)Be2Fe2(PO4)4 · 6H2O
Locality: Roosevelt group (Rough Rider), Custer, Custer District, Custer Co., South Dakota, USA
Photo: © 2004 JBS. Faheyite from Roosevelt group, Custer, Custer District, Custer Co., South Dakota, USA
'Fahlunite'
Formula: (Mg,Fe)Al2Si3O10 · 2H2O
Localities: Timms Hill (Tim's Hill; Iolite Hill), Haddam, Middlesex Co., Connecticut, USA
Hot Spring Co., Arkansas, USA
Vesper Peak, Sultan Basin, Sultan District, Snohomish Co., Washington, USA
Photo: © Moritz. Fahlunite from Timms Hill, Haddam, Middlesex Co., Connecticut, USA
Fairbankite (TL)
Formula: Pb(TeO3)
Type Locality: Grand Central Mine, Contention-Grand Central Mine group, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Habit: Crystals less than 0.5 mm
Colour: Colorless
Description: Tiny, clear crystals in thin crusts plastered of walls of voids left by leaching of galena. Closely associated with oboyerite.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 218; Williams, S.A. (1979), Girdite, oboyerite, fairbankite, and winstanleyite, four new tellurium minerals from Tombstone, AZ, Min.Mag.: 43: 453-457.
Photo: © Brent Thorne. Fairbankite from Grand Central Mine, Contention-Grand Central Mine group, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
'Fairbanksite'
Locality: Greenbelt, Prince Georges Co., Maryland, USA
Fairchildite (TL)
Formula: K2Ca(CO3)2
Type Locality: Coolin, Kaniksu National Forest, Bonner Co., Idaho, USA
Reference: Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
Localities: Recorded from at least 2 other localities in this region.
Fairfieldite (TL)
Formula: Ca2(Mn2+,Fe2+)(PO4)2 · 2H2O
Type Locality: Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Ridgefield, Fairfield Co., Connecticut, USA
Habit: foliated to lamellar masses, radiating masses consisting of curved foliated or fibrous aggregations
Colour: white to pale straw-yellow
Description: One variety cccurs filling cavities in the reddingite, and covering the distinct crystals of this mineral. It is uniformly clear and transparent, and is highly lustrous, showing entire absence of even incipient alteration. It is generally foliated to lamellar, although sometimes of a somewhat radiated structure. A second variety occurs in masses of considerable size interpenetrated rather irregularly with quartz, and quite uniformly run through with thin seams and lines of a black manganesian mineral of not very clearly defined character. Typically friable to the touch and lacks something of the brilliant luster of the first variety, it also shows greater difference of structure, passing from the distinct crystals to the massive and radiated form. Also occurs in small particles in fillowite and in masses of some size immediately associated with eosphorite, triploidite, and dickinsonite.
Reference: Brush and Dana (1878); Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 671, 721; NJMM (1957), 78; Lapis (1984): 2: 5.; Rocks & Minerals (1995) 70:396-409
Localities: Recorded from at least 41 other localities in this region.
Photo: © 2005 JBS. Fairfieldite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Falsterite (TL)
Formula: Ca2MgMn2+2Fe2+2Fe3+2Zn4(PO4)8(OH)4(H2O)14
Type Locality: Palermo No. 1 Mine (Palermo No. 1 pegmatite), Groton, Grafton Co., New Hampshire, USA
Reference: Anthony R. Kampf, Stuart J. Mills, W.B. Simmons, James W. Nizamoff, and R.W. Whitmore (2012) Falsterite, Ca2MgMn2+2(Fe2+0.5Fe3+0.5)4Zn4(PO4)8(OH)4(H2O)14, a new secondary phosphate mineral from the Palermo No. 1 pegmatite, North Groton, New Hampshire. American Mineralogist, 97:496–502
Localities: Recorded from at least 1 other locality in this region.
Photo: © 2012 Peter Cristofono. Falsterite from Estes Quarry, West Baldwin, Baldwin, Cumberland Co., Maine, USA
Famatinite
Formula: Cu3SbS4
Localities: Reported from at least 37 localities in this region.
Photo: © Jasun McAvoy. Famatinite from Morning Star Mine, Mogul Peak, Monitor - Mogul District, Alpine Co., California, USA
Fangite (TL)
Formula: Tl3AsS4
Type Locality: Mercur Disseminated Gold Mine (Marion Hill pit), Mercur District (Camp Floyd District), Oquirrh Mts, Tooele Co., Utah, USA
Reference: American Mineralogist: 78: 1096-1103
'Faratsihite'
Locality: East Tintic District, East Tintic Mts, Utah Co., Utah, USA
Faujasite-Ca
Formula: (Ca,Na2,Mg)3.5[Al7Si17O48] · 32H2O
Locality: Table Mountain, San Bernardino Co., California, USA
Photo: © 2004 JBS. Faujasite-Ca from Mohawk Mine, Mohawk Hill, Pactolus, Clark Mountain District, Clark Mts, San Bernardino Co., California, USA
Faujasite-Na
Formula: (Na2,Ca,Mg)3.5[Al7Si17O48] · 32H2O
Locality: Kalepa Ridge, Hanamaulu, Kauai Island, Kauai Co., Hawaii, USA
'Faujasite Subgroup'
Localities: Reported from at least 6 localities in this region.
Faustite (TL)
Formula: (Zn,Cu)Al6(PO4)4(OH)8 · 4H2O
Type Locality: Copper King mine, Schroeder Mt, Maggie Creek District, Eureka Co., Nevada, USA
Reference: Amer.Min.(1953) 38, 964-972
Localities: Recorded from at least 4 other localities in this region.
Photo: © 2007, JGW. Faustite from Rain Mine, Carlin District, Elko Co., Nevada, USA
Fayalite
Formula: Fe2+2SiO4
Localities: Reported from at least 89 localities in this region.
Photo: © Saul Krotki 2002. Fayalite from Coso Hot Springs deposit, Coso Hot Springs, Coso District, Coso Mts, Inyo Co., California, USA
Fayalite var: Roepperite (of Brush)
Formula: (Fe2+2,Mn,Zn)SiO4
Localities: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
'Fayalite-Forsterite Series'
Localities: Danny Mine (Dannie Mine; Washington Chrome Mine), Nooksack River, Twin Sisters Mountain, Sisters District, Whatcom Co., Washington, USA
Ribbon Mine (Washington Chrome Mine), Green Creek, Twin Sisters Mountain, Sisters District, Whatcom Co., Washington, USA
Photo: © . Fayalite-Forsterite Series from O'Neil Mine, Lake Mombasha, Town of Monroe, Orange Co., New York, USA
'Fayalite-Forsterite Series var: Hortonolite'
Formula: from (Fe1.5Mg0.5)2SiO4 to (Mg1.5Fe0.5)2SiO4
Locality: O'Neil Mine (Nail Mine), Lake Mombasha, Town of Monroe, Orange Co., New York, USA
'Fayalite-Tephroite Series var: Knebelite'
Formula: from (Fe1.5Mn0.5)2SiO4 to (Mn1.5Fe0.5)2SiO4
Localities: Long Mountain, Stark, Coos Co., New Hampshire, USA
Cumberland, Providence Co., Rhode Island, USA
Photo: © 2009 Peter Cristofono. Knebelite from Long Mountain, Stark, Coos Co., New Hampshire, USA
Fedotovite
Formula: K2Cu3(SO4)3O
Locality: Nickel mine, Bolivia, Cottonwood Canyon, Table Mountain District, Churchill Co., Nevada, USA
Feitknechtite (TL)
Formula: Mn3+O(OH)
Type Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Reference: Frondel, C.: Am. Min.:38:761-769 (1953); Wadsley, A.D.: Am. Min.:40:349-353 (1955); Dunn(1995):Pt4:591-592.
'Feldspar Group'
Localities: Reported from at least 931 localities in this region.
Photo: © Alan Goldstein. Feldspar Group from Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
'Feldspar Group var: Oregon Sunstone'
Localities: Oregon Sunstone public collection area, Plush, Lake Co., Oregon, USA
Ponderosa Sunstones Mine (Pinkie Nos. 1-4 Claims), Harney Co., Oregon, USA
Dust Devil Mine, Plush, Lake Co., Oregon, USA
Harney District, Harney Co., Oregon, USA
Spectrum Mine, Plush, Lake Co., Oregon, USA
Photo: Oregon Sunstone from Onion Mountain Quarry, Josephine Co., Oregon, USA
'Feldspar Group var: Sunstone'
Localities: Reported from at least 22 localities in this region.
Photo: © Martins da Pedra. Sunstone from Dust Devil Mine, Plush, Lake Co., Oregon, USA
Felsőbányaite
Formula: Al4(SO4)(OH)10 · 4H2O
Localities: Reported from at least 22 localities in this region.
Fencooperite (TL)
Formula: Ba6Fe3+3Si8O23(CO3)2Cl3 · H2O
Type Locality: Incline Sanbornite deposit, Eagle Peak [1], El Portal, Mariposa Co., California, USA
Habit: None
Colour: Black
Fluorescence: None
Reference: Canadian Mineralogist: 39(4): 1059
Localities: Recorded from at least 1 other locality in this region.
Photo: © Maurice de Graaf. Fencooperite from Incline Sanbornite deposit, Eagle Peak [1], El Portal, Mariposa Co., California, USA
Ferberite
Formula: FeWO4
Localities: Reported from at least 121 localities in this region.
Photo: © 2001 John H. Betts. Ferberite from Manchester Mine, Rollinsville, Gilpin Co., Colorado, USA
Ferberite var: Reinite
Locality: Yaney Mine, West Bishop, Tungsten Hills, Tungsten Hills District (Bishop District), Inyo Co., California, USA
'Ferberite-Hübnerite Series'
Localities: Field Mine, New York Mts, Mojave National Preserve, San Bernardino Co., California, USA
Garvanza Mine (American Tungsten Mining and Refining Company; Carbonate Mine), New York Mts, Mojave National Preserve, San Bernardino Co., California, USA
Schloerb Mine (Shafer Mine; Schloerb and Field), Brant, New York Mts, Mojave National Preserve, San Bernardino Co., California, USA
'Fergusonite'
Localities: Reported from at least 68 localities in this region.
Photo: © 2007, F. Roberts. Fergusonite from Petrick pegmatite, Kingsland Granite Company Quarry, Llano Co., Texas, USA
Fergusonite-(Ce)
Formula: (Ce,La,Nd)NbO4
Locality: Granite Mountain area, Little Rock, Pulaski Co., Arkansas, USA
Fergusonite-(Y)
Formula: YNbO4
Localities: Reported from at least 25 localities in this region.
Photo: © 2004 ROM. Fergusonite-(Y) from Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Fernandinite
Formula: (Ca,K)(V5+,V4+,Fe2+)8O20 · 10H2O
Localities: Reported from at least 6 localities in this region.
Photo: © Brent Thorne. Fernandinite from Sunday Mine, Slick Rock District, San Miguel Co., Colorado, USA
Ferricopiapite
Formula: Fe5(SO4)6O(OH) · 20H2O
Localities: Reported from at least 11 localities in this region.
Photo: © 2008, JGW. Ferricopiapite from Gilt Edge Mine, Galena, Galena District, Lawrence Co., South Dakota, USA
'Ferrierite'
Localities: Reported from at least 10 localities in this region.
Photo: © Rockpick Legend Co.. Ferrierite from Frisco, San Francisco District, San Francisco Mts, Beaver Co., Utah, USA
Ferrierite-K (TL)
Formula: (K2,Na2,Mg,Ca)3-5Mg[Al5-7Si27.5-31O72] · 18H2O
Type Locality: Santa Monica Mts, Los Angeles Co., California, USA
Reference: The Canadian Mineralogist Vol. 35, pp. 1571-1606 (1997)
Localities: Recorded from at least 1 other locality in this region.
Photo: © Dick Dionne. Ferrierite-K from Kanan Road, Agoura Hills, Santa Monica Mts, Los Angeles Co., California, USA
Ferrierite-Mg
Formula: (Mg,Na2,K2,Ca)3-5Mg[Al5-7Si27.5-31O72] · 18H2O
Locality: Kanan Road Quarry, Agoura Hills, Santa Monica Mts, Los Angeles Co., California, USA
Ferrierite-Na (TL)
Formula: (Na2,K2,Mg,Ca)3-5Mg[Al5-7Si27.5-31O72] · 18H2O
Type Locality: Roadcuts, Altoona, Wahkiakum Co., Washington, USA
Reference: Cannon, B. (1975): Minerals of Washington, p.75,80; Micro Probe Volume IX Number 3 Spring 2001
Localities: Recorded from at least 2 other localities in this region.
Photo: © Maggie Wilson. Ferrierite-Na from Roadcuts, Altoona, Wahkiakum Co., Washington, USA
Ferri-ghoseite
Formula: ☐[Mn2+Na][Mg4Fe3+]Si8O22(OH)2
Localities: Jail Hill Road locality (Jail Hill Quarry), Haddam, Middlesex Co., Connecticut, USA
Haddam, Middlesex Co., Connecticut, USA ? (more information)
Balmat, Balmat-Edwards Zinc District, St. Lawrence Co., New York, USA (more information)
ZCA No. 4 Mine (St Joe Mine), Balmat, Balmat-Edwards Zinc District, St. Lawrence Co., New York, USA (more information)
International Talc Company Mine (Reynolds Mine), Talcville, St. Lawrence Co., New York, USA (more information)
Ferrihydrite
Formula: Fe3+5O3(OH)9
Localities: Reported from at least 6 localities in this region.
Ferrihydrite var: Melanosiderite
Locality: Smedley's Iron Mine, Lima, Middletown Township, Delaware Co., Pennsylvania, USA
Ferrimolybdite
Formula: Fe2(MoO4)3 · nH2O
Localities: Reported from at least 192 localities in this region.
Photo: © Paul Bongaerts. Ferrimolybdite from Cleator area, Cleator, Black Canyon District, Wickenburg Mts, Yavapai Co., Arizona, USA
Ferrinatrite
Formula: Na3Fe(SO4)3 · 3H2O
Localities: Sulphur Mine (Crenshaw Mine; Victoria Furnace Mine), Mineral, Gold-Pyrite Belt, Louisa Co., Virginia, USA
Roadcut, Big Stone Gap, Wise Co., Virginia, USA
Roadcut (2), Big Stone Gap, Wise Co., Virginia, USA
Ferripyrophyllite
Formula: Fe3+2(Si4O10)(OH)2
Locality: Salt Spring Creek, Cloverdale area, Mendocino Co., California, USA
Ferrisicklerite
Formula: Li1-x(Fe3+xFe2+1-x)PO4
Localities: Reported from at least 24 localities in this region.
Photo: © 2007 Peter Cristofono. Ferrisicklerite from Palermo No. 1 Mine, Groton, Grafton Co., New Hampshire, USA
Ferristrunzite
Formula: Fe3+Fe3+2(PO4)2(OH)3 · 5H2O
Locality: Flambeau Mine, Ladysmith, Rusk Co., Wisconsin, USA
Ferrisurite (TL)
Formula: (Pb,Ca)2.4Fe3+2(Si4O10)(CO3)1.7(OH)3 · nH2O
Type Locality: Shirley Ann group (Shirley Ann claim; Dodd Springs; Trail; Eureka; Sal; June; Bee Em Tee), Big Dodd Spring, Ubehebe District, Panamint Mts (Panamint Range), Inyo Co., California, USA
Reference: American Mineralogist (1992): 77: 1107-1111; Adams, P.M. (2001). "The Shirley Ann claim, Inyo County, California." Mineralogical Record: 32(5): 393-400.
Localities: Recorded from at least 1 other locality in this region.
Photo: © JBS 2006. Ferrisurite from Shirley Ann group, Big Dodd Spring, Ubehebe District, Panamint Mts, Inyo Co., California, USA
Ferrisymplesite
Formula: Fe3+3(AsO4)2(OH)3 · 5H2O
Locality: Gold Hill Mine (Western Utah Mine), Gold Hill, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
Ferro-actinolite
Formula: ☐{Ca2}{Fe2+5}(Si8O22)(OH)2
Localities: Reported from at least 24 localities in this region.
Photo: © Van King. Ferro-actinolite from Tungsten Hills, Tungsten Hills District, Inyo Co., California, USA
'Ferro-Actinolite-Tremolite Series'
Locality: Independence Rock, Sweetwater Valley, Natrona Co., Wyoming, USA
Photo: © Rockpick Legend Co.. Ferro-Actinolite-Tremolite Series from Wyoming, USA
'Ferro-Actinolite-Tremolite Series var: Nephrite'
Localities: Reported from at least 59 localities in this region.
Photo: © Martins da Pedra. Nephrite from Split Rock, Granite Mts, Natrona Co., Wyoming, USA
'Ferroalluaudite-Na□'
Formula: 4Na4Fe2+4Fe3+8(PO4)12
Locality: Pleasant Valley Pegmatite, Fourmile, Custer District, Custer Co., South Dakota, USA
Photo: © Paul Bongaerts. Ferroalluaudite-Na□ from Pleasant Valley Pegmatite, Fourmile, Custer District, Custer Co., South Dakota, USA
'Ferroan pargasite'
Locality: Laurel Creek complex, Rabun Co., Georgia, USA
Ferro-anthophyllite (TL)
Formula: ☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2
Type Locality: Tamarack and Custer Mine (Thomas; Custer; Murphy; Watson; Nelson; Monroe), Custer Peak, Ninemile Creek, Coeur d'Alene District, Shoshone Co., Idaho, USA
Reference: Rocks & Min. 70:262
Localities: Recorded from at least 2 other localities in this region.
Ferroceladonite
Formula: K(Fe2+,Mg)(Fe3+,Al)(Si4O10)(OH)2
Locality: Granite Mountain No. 3 Quarry, Sweet Home, Granite Mountain complex, Saline Co., Arkansas, USA
Ferro-eckermannite
Formula: NaNa2(Fe2+,4Al)Si8O22(OH)2
Locality: Fountain Quarry, Fountain, Pitt Co., North Carolina, USA
Ferro-edenite
Formula: {Na}{Ca2}{Fe2+5}(AlSi7O22)(OH)2
Localities: Reported from at least 8 localities in this region.
Ferroericssonite (TL)
Formula: BaFe2+2 Fe3+(Si2O7)O(OH)
Type Locality: Esquire No. 7 claim, Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Reference: Kampf, A.R., Roberts, A.C., Venance, K.E., Dunning, G.E., Robert E. Walstrom, R.E. (2011): Ferroericssonite, The Fe2+ analogue of ericssonite, from Eastern Fresno County, California, U.S.A. Canadian Mineralogist, 49, 587-594.
Localities: Recorded from at least 2 other localities in this region.
Photo: Ferroericssonite from Esquire No. 8 claim, Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Ferro-ferri-fluoro-leakeite (TL)
Formula: Na(Na2)(Fe2+2Fe3+2Li)(Si8O22)(F)2
Type Locality: Canada Pinabete pluton, Questa, Taos Co., New Mexico, USA
Reference: American Mineralogist, Volume 78, pages 733-745, 1993
Ferro-ferri-obertiite (TL)
Formula: NaNa2(Fe2+3Fe3+Ti)Si8O22O2
Type Locality: Coyote Peak, Coastal Range, Humboldt Co., California, USA
Reference: IMA approvals - August 2009
Ferro-ferri-taramite
Formula: Na(CaNa)(Fe2+3Fe3+2)(Al2Si6O22)(OH)2
Locality: Pieta Creek area, Pieta, Mendocino Co., California, USA
Ferro-gedrite
Formula: ☐{Fe2+2}{Fe2+3Al2}(Al2Si6O22)(OH)2
Localities: New York City, New York, USA
Middle Moat Mountain locality (Moat Mountain), Hale's Location, Carroll Co., New Hampshire, USA
Jackson County Iron Mine (Black River Falls Mine; Ron Mound; Seven Mile Mound Mine), Jackson Co., Wisconsin, USA
Photo: © 2011 Peter Cristofono. Ferro-gedrite from Lovejoy Gravel Pits, Albany, Carroll Co., New Hampshire, USA
Ferro-glaucophane
Formula: ◻[Na2][Fe2+3Al2]Si8O22(OH)2
Locality: Outlet Creek occurrence, North of Longvale, Longvale, Coastal Range, Mendocino Co., California, USA
'Ferrohagendorfite'
Formula: NaCaFe2+Fe2+2(PO4)3
Localities: Palermo No. 1 Mine (Palermo No. 1 pegmatite), Groton, Grafton Co., New Hampshire, USA
Palermo No. 2 mine, Groton, Grafton Co., New Hampshire, USA
Ferrohexahydrite
Formula: FeSO4 · 6H2O
Localities: Gossan Mine, Fries, Gossan Lead District, Southern Section-Blue Ridge Province, Carroll Co., Virginia, USA
Iron Ridge Mine (Bumbarger Pit; Great Outburst Mine; Huey Pit; Monarat Mine), Fries, Gossan Lead District, Southern Section-Blue Ridge Province, Carroll Co., Virginia, USA
Sulphur Mine (Crenshaw Mine; Victoria Furnace Mine), Mineral, Gold-Pyrite Belt, Louisa Co., Virginia, USA
Davis Pyrite Mine (Davis Mine; Davis Sulfur Ore Mine), Rowe, Franklin Co., Massachusetts, USA
Sunset Crater (Sunset Peak), San Franciscan volcanic field (San Francisco Peaks; San Francisco Mts), Coconino Co., Arizona, USA
Ferrohögbomite-2N2S
Formula: [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2
Locality: Benson Mines, Benson, Star Lake, St. Lawrence Co., New York, USA
Ferro-hornblende
Formula: ☐{Ca2}{Fe2+4Al}(AlSi7O22)(OH)2
Localities: Reported from at least 155 localities in this region.
Photo: © 2004 Peter Cristofono. Ferro-hornblende from Aggregate Industries Quarry, Ashland, Middlesex Co., Massachusetts, USA
Ferroindialite
Formula: (Fe2+,Mg)2Al4Si5O18
Locality: Durham Ranch, Reno Junction, Campbell Co., Wyoming, USA
Ferro-kaersutite
Formula: {Na}{Ca2}{Fe2+3AlTi}(Al2Si6O22)O2
Localities: Soda Springs vent, San Carlos Indian Reservation, Gila Co., Arizona, USA
Porter Square, Cambridge, Middlesex Co., Massachusetts, USA
Ferro-katophorite
Formula: {Na}{CaNa}{Fe2+4Al}[(AlSi7)O22](OH)2
Localities: Cornudas Mts, Otero Co., New Mexico, USA
Red Hill, Moultonborough, Carroll Co., New Hampshire, USA
Essex Co., Massachusetts, USA ? (more information)
Quincy, Norfolk Co., Massachusetts, USA (more information)
Ferrolaueite (TL)
Formula: Fe2+Fe3+2(PO4)2(OH)2 · 8H2O
Type Locality: My Creek locality, Arneytown, Upper Freehold Township, Monmouth Co., New Jersey, USA
Reference: Segeler, C.G., P.B. Moore, M.D. Dyar, F. Leans, and J.A.Ferraiolo (2012): Ferrolaueite, a new mineral from Monmouth County, New Jersey, USA, Australian Journal of Mineralogy 16(2), 69-76.
Localities: Recorded from at least 1 other locality in this region.
Photo: Ferrolaueite from My Creek locality, Arneytown, Upper Freehold Township, Monmouth Co., New Jersey, USA
Ferronickelplatinum
Formula: Pt2FeNi
Locality: West Nottingham Township, State Line Chromite District, Chester Co., Pennsylvania, USA
Ferronigerite-2N1S
Formula: Sn(Fe,Mg)Al6O11(OH)
Locality: North Carolina, USA
Ferro-pargasite
Formula: {Na}{Ca2}{Fe2+4Al}(Al2Si6O22)(OH)2
Localities: Reported from at least 6 localities in this region.
Photo: © 2008 Peter Cristofono. Ferro-pargasite from Keene, Essex Co., New York, USA
Ferro-richterite
Formula: {Na}{CaNa}{Fe2+5}(Si8O22)(OH)2
Localities: Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Carroll Co., New Hampshire, USA
Fountain Quarry, Fountain, Pitt Co., North Carolina, USA
Ferrosaponite
Formula: Ca0.3(Fe2+,Mg,Fe3+)3((Si,Al)4O10)(OH)2 · 4H2O
Locality: Neuerberg locality 9, Cahuenga Boulevard roadcut, Cahuenga Pass, Hollywood, Hollywood Hills, Los Angeles, Santa Monica Mts, Los Angeles Co., California, USA - erroneously reported
Ferroselite
Formula: FeSe2
Localities: Reported from at least 30 localities in this region.
Photo: © Brent Thorne. Ferroselite from Molly Hogan Group, Parco Mine Group, Thompsons District, Grand Co., Utah, USA
Ferrosilite
Formula: FeSiO3
Localities: Reported from at least 11 localities in this region.
Photo: © Van King. Ferrosilite from Route 16 roadcut, Little Moose Township, Piscataquis Co., Maine, USA
Ferrostrunzite (TL)
Formula: Fe2+Fe3+2(PO4)2(OH)2 · 6H2O
Type Locality: Raccoon Creek, Mullica Hill, Harrison Township, Gloucester Co., New Jersey, USA
Reference: Neues Jahrb.Min.,Mh.(1983) 524-528
Localities: Recorded from at least 8 other localities in this region.
Photo: © 2001 John H. Betts. Ferrostrunzite from Hornerstown, Monmouth Co., New Jersey, USA
'Ferrotellurite' (TL)
Formula: Fe(TeO4) (?)
Type Locality: Keystone Mine, Magnolia District, Boulder Co., Colorado, USA
Reference: Heys Mineral Index 3rd ed.
Ferro-tschermakite
Formula: ☐{Ca2}{Fe2+3Al2}(Al2Si6O22)(OH)2
Localities: Emeryville, St. Lawrence Co., New York, USA
Hutter Mine (Herter Magnetite Mine), James River-Roanoke River Mn-Fe-Ba District, Pittsylvania Co., Virginia, USA
Standard Mine, Ruby District, Gunnison Co., Colorado, USA
Ferrowyllieite (TL)
Formula: (Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3
Type Locality: Victory Mine (Victory pegmatite; Victory Mica Mine; Hedman Mine), Custer, Custer District, Custer Co., South Dakota, USA
Reference: Rocks & Min.: 57:55.
Localities: Recorded from at least 1 other locality in this region.
Photo: © Peter Chin. Ferrowyllieite from Victory Mine, Custer, Custer District, Custer Co., South Dakota, USA
Fersmanite
Formula: Ca4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3
Localities: Rare Earth Special No. 1 and No. 2 Claims, Wet Mountains Area, Custer Co., Colorado, USA
Woodbury Quarry, Stevens Co., Washington, USA ? (more information)
Fersmite
Formula: (Ca,Y)(Nb,Ta,Ti)2(O,OH)6
Localities: Reported from at least 12 localities in this region.
Photo: © Arliguie M. Fersmite from Dark Star group, Alta, Mineral Point District, Ravalli Co., Montana, USA
Feruvite
Formula: Ca(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
Localities: Jayville mine, St. Lawrence Co., New York, USA
Clifton Mines, Clifton, St. Lawrence Co., New York, USA
South Carolina, USA
Russell, St. Lawrence Co., New York, USA
Fervanite (TL)
Formula: Fe3+4V5+4O16 · 5H2O
Type Locality: Polar Mesa, Polar Mesa District (Polar Mesa), Grand Co., Utah, USA
Reference: American Mineralogist (1931): 16: 273-277; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1049; American Mineralogist (1959): 44: 322-341.
Localities: Recorded from at least 11 other localities in this region.
Photo: © 2007, JGW. Fervanite from Gold Quarry Mine, Maggie Creek Subdistrict, Carlin Trend, Eureka Co., Nevada, USA
Fibroferrite
Formula: Fe3+(SO4)(OH) · 5H2O
Localities: Reported from at least 20 localities in this region.
Fillowite (TL)
Formula: {Mn2+}{Na8}{Ca4Na4}{(Mn2+,Fe2+)43}(PO4)36
Type Locality: Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Ridgefield, Fairfield Co., Connecticut, USA
Habit: granular aggregates, rare micro rhombohedra in tiny pockets
Colour: honey-yellow, wax-yellow, also yellowish to reddish-brown
Description: Reddingite is very commonly associated with fillowite, and in many cases it is not easy to distinguish the two minerals.
Reference: Brush and Dana (1878); American Mineralogist (1946): 31: 329-345; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 720.; Rocks & Minerals (1995) 70:396-409
Localities: Recorded from at least 3 other localities in this region.
Photo: © 2012 Harold Moritz. Fillowite from Fillow Quarry, Branchville, Ridgefield, Fairfield Co., Connecticut, USA
Fischesserite
Formula: Ag3AuSe2
Localities: Cannon Mine, Squillchuck Creek, Wenatchee, Wenatchee District, Chelan Co., Washington, USA
De Lamar Mine (Wahl; Sommercamp; Voschay), De Lamar District, Owyhee Co., Idaho, USA
Ken Snyder Mine (Midas Mine), Gold Circle District (Midas District), Elko Co., Nevada, USA
Gold Circle Mine (Bamberger group; Bonberger mine), Gold Circle District (Midas District), Elko Co., Nevada, USA
Eastern Star Mine (ASARCO Star claims), Gold Circle District (Midas District), Elko Co., Nevada, USA
Photo: © 2007, JGW. Fischesserite from De Lamar Mine, De Lamar District, Owyhee Co., Idaho, USA
Fizélyite
Formula: Ag5Pb14Sb21S48
Localities: Reported from at least 13 localities in this region.
Photo: Fizélyite from Blue Light Mine, Silverado, Santa Ana Mts, Orange Co., California, USA
Flagstaffite (TL)
Formula: C10H22O3
Type Locality: Flagstaff, Coconino Co., Arizona, USA
Description: Occurs as a filling in radial cracks of certain buried tree trunks.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 222; Guild, F.N. (1920), Flagstaffite, a new mineral from AZ, Am.Min.: 5: 169-172; Guild, F.N. (1921), The identity of flagstaffite and terpin hydrate, Am.Min.: 6, 133-135; Guild, F.N. (1922), Flagstaffite, a new Arizona mineral, and its identity with terpin hydrate (abs.), Science: 55: 543; Strunz, H. & B. Contag (1965), Evenkite, idrialite, and refikite (abs.), Am.Min.: 50: 2109-2110.
Photo: © 2007, JGW. Flagstaffite from Flagstaff, Coconino Co., Arizona, USA
Fletcherite (TL)
Formula: Cu(Ni,Co)2S4
Type Locality: Fletcher Mine, Centerville, Viburnum Trend District, Reynolds Co., Missouri, USA
Reference: Econ. Geol., 72, 480-486.
Localities: Recorded from at least 1 other locality in this region.
Photo: © . Fletcherite from Fletcher Mine, Centerville, Viburnum Trend District, Reynolds Co., Missouri, USA
Flinkite
Formula: Mn2+2Mn3+(AsO4)(OH)4
Localities: Buckwheat pit (Southwest opening; Buckwheat Mine), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Buckwheat Dump Mineral Collecting Site, Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Photo: Flinkite from Buckwheat Dump Mineral Collecting Site, Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
'Flint'
Localities: Reported from at least 82 localities in this region.
Photo: © aca. Flint from Alibates Flint Quarry National Monument, Potter Co., Texas, USA
'Florencite'
Localities: Reported from at least 9 localities in this region.
Florencite-(Ce)
Formula: CeAl3(PO4)2(OH)6
Localities: Granite Mountain area, Little Rock, Pulaski Co., Arkansas, USA
Palermo No. 1 Mine (Palermo No. 1 pegmatite), Groton, Grafton Co., New Hampshire, USA
Unnamed prospect, Turquoise Lake, St. Kevin - Independence, Lake Co., Colorado, USA
Tarryall, Park Co., Colorado, USA
McGuire Pit (Salzman Quarry; Salzman Enterprises), Marathon Co., Wisconsin, USA
Florencite-(Nd) (TL)
Formula: (Nd,La,Ce)Al3(PO4)2(OH)6
Type Locality: North side of lateral to highway 101 roadcut, Sausalito, Marin Co., California, USA
Colour: Brown
Description: Occurs as brown, pulverulent and earthy material.
Reference: Milton, D.J. and Bastron, H. (1971). "Churchite and Florencite (Nd) from Sausalito, California." Mineralogical Record: 2(4): 166-168.
Localities: Recorded from at least 1 other locality in this region.
Fluckite
Formula: CaMn2+(HAsO4)2 · 2H2O
Locality: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Fluellite
Formula: Al2(PO4)F2(OH) · 7H2O
Localities: Reported from at least 11 localities in this region.
Photo: Fluellite from Willard Mine, Willard District, Humboldt Range, Pershing Co., Nevada, USA
Fluoborite
Formula: Mg3(BO3)(F,OH)3
Localities: Reported from at least 12 localities in this region.
Photo: Fluoborite from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
'Fluocerite'
Localities: Reported from at least 8 localities in this region.
Fluocerite-(Ce)
Formula: (Ce,La)F3
Localities: Reported from at least 14 localities in this region.
Photo: © Leon Hupperichs. Fluocerite-(Ce) from Black Cloud Mine, Teller Co., Colorado, USA
Fluorannite
Formula: KFe2+3(AlSi3O10)(F,OH)2
Locality: Henderson Mine, Dailey District (Jones Pass District), Clear Creek Co., Colorado, USA
Fluorapatite
Formula: Ca5(PO4)3F
Localities: Reported from at least 743 localities in this region.
Photo: © JBS 2008. Fluorapatite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Fluorapatite var: Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
Localities: Reported from at least 118 localities in this region.
Photo: © DM 06. Carbonate-rich Fluorapatite from Silver Coin Mine, Valmy, Iron Point District, Humboldt Co., Nevada, USA
Fluorapatite var: Mn-bearing Fluorapatite
Formula: (Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Localities: Reported from at least 27 localities in this region.
Photo: © Paul Gilmore. Mn-bearing Fluorapatite from Hollister prospects, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Fluorapatite var: Strontian Apatite
Formula: (Ca,Sr)5(PO4)3F
Locality: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Fluorapophyllite-(K)
Formula: KCa4(Si8O20)(F,OH) · 8H2O
Localities: Reported from at least 68 localities in this region.
Photo: © Frank A. Imbriacco III. Fluorapophyllite-(K) from Millington Quarry, Bernards Township, Somerset Co., New Jersey, USA
Fluorapophyllite-(Na)
Formula: NaCa4(Si8O20)F · 8H2O
Localities: Valley Landfill Pit (S2F quarry), Coffin Butte, Benton Co., Oregon, USA
Goldstrike Mine, Lynn District, Eureka Co., Nevada, USA
Getchell Mine (North Pit; Center pit; South pit), Adam Peak, Potosi District, Osgood Mts, Humboldt Co., Nevada, USA
Photo: © Karl Volkman. Fluorapophyllite-(Na) from Valley Landfill Pit, Coffin Butte, Benton Co., Oregon, USA
Fluorbritholite-(Ce)
Formula: Ca2(Ce,Ca)3(SiO4,PO4)3(F,OH)
Localities: "Cerite" occurrence, Jamestown, Jamestown District, Boulder Co., Colorado, USA
Rusty Gold Mine (Copper Blush occurrence), Jamestown District, Boulder Co., Colorado, USA
Photo: © Pavel M. Kartashov. Fluorbritholite-(Ce) from "Cerite" occurrence, Jamestown, Jamestown District, Boulder Co., Colorado, USA
Fluor-dravite (TL)
Formula: Na(Mg3)Al6(Si6O18)(BO3)3(OH)3F
Type Locality: Crabtree Mine (Big Crabtree Emerald Mine), Spruce Pine, Spruce Pine District, Mitchell Co., North Carolina, USA
Habit: Anhedral, up to a few mm in size,occurs as isolated grains.
Colour: Blackish-Brown
Fluorescence: None in S.W or L.W light
Description: Associated with plagioclase,K-feldspar,Quartz,Beryl,Muscovite,Garnet group,Biotite, and Fluorite.
Reference: Clark, C.M., Hawthorne, F.C., Ottolini, L. (2011): Fluor-dravite, NaMg3Al6Si6O18(BO3)3(OH)3F, a new mineral of the tourmaline group from the Crabtree emerald mine, Mitchell County, North Carolina: description and crystal structure. Canadian Mineralogist, 49, 57-62.
Localities: Recorded from at least 1 other locality in this region.
Photo: © Chamberlain. Fluor-dravite from Cream of the Valley Road, Gouverneur, St. Lawrence Co., New York, USA
'Fluoredenite'
Locality: Edison-Bodnar quarry, Rudeville, Hardyston Township, Sussex Co., New Jersey, USA
Fluor-elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F
Locality: Himalaya Mine (Himalaya dikes; Himalaya pegmatite), Gem Hill, Mesa Grande District, San Diego Co., California, USA
Fluorellestadite
Formula: Ca5(SiO4)1.5(SO4)1.5F
Localities: Reported from at least 6 localities in this region.
Photo: © 1. Fluorellestadite from Commercial quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Riverside Co., California, USA
Fluorellestadite var: Wilkeite
Locality: Crestmore quarries, Crestmore, Riverside Co., California, USA
Fluorite
Formula: CaF2
Localities: Reported from at least 3649 localities in this region.
Photo: © Bob Jackson. Fluorite from La Fluorita Dulcita Cu prospect, Cochise Co., Arizona, USA
Fluorite var: Chlorophane
Localities: Reported from at least 20 localities in this region.
Photo: © 2005, F. Roberts. Chlorophane from Badu Hill pegmatite, Llano, Llano Co., Texas, USA
Fluorite var: Yttrocerite
Formula: (Ca,Y,Ce)F2+x
Localities: Reported from at least 14 localities in this region.
Photo: © Jasun McAvoy. Yttrocerite from Edenville, Town of Warwick, Orange Co., New York, USA
Fluorite var: Yttrofluorite
Formula: (Ca1-xYx)F2+x where 0.05< x <0.3
Localities: Reported from at least 16 localities in this region.
Photo: Yttrofluorite from Big Bertha Mine, South Platte Pegmatite District, Jefferson Co., Colorado, USA
Fluornatromicrolite
Formula: (Na,Ca,Bi)2Ta2O6F
Locality: Bennett Quarry, Buckfield, Oxford Co., Maine, USA
Fluoro-edenite
Formula: {Na}{Ca2}{Mg5}(AlSi7O22)(F,OH)2
Localities: Reported from at least 10 localities in this region.
Photo: Fluoro-edenite from Rhein property, Amity, Town of Warwick, Orange Co., New York, USA
'Fluoro-katophorite'
Formula: Na(CaNa)(Mg4Al)(AlSi7O22)F2
Localities: Amalia tuff, Questa, Taos Co., New Mexico, USA
Virgin Canyon pluton, Questa, Taos Co., New Mexico, USA
Fluoro-pargasite (TL)
Formula: {Na}{Ca2}{Mg4Al}(Al2Si6O22)(F,OH)2
Type Locality: Edenville, Town of Warwick, Orange Co., New York, USA
Reference: M. V. Lupulescu et al.: Can. Min. 43:1423-1428 (2005)
Localities: Recorded from at least 3 other localities in this region.
Fluorophlogopite
Formula: KMg3(AlSi3O10)(F,OH)2
Localities: Reported from at least 7 localities in this region.
Photo: © CRC. Fluorophlogopite from Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Fluoro-richterite
Formula: {Na}{CaNa}{Mg5}(Si8O22)(F,OH)2
Locality: Coyote Peak, Coastal Range, Humboldt Co., California, USA
'Fluoro-riebeckite'
Formula: ◻{Na2}{Fe2+3Fe3+2}(Si8O22)F2
Locality: Mount Rosa, El Paso Co., Colorado, USA
'Fluoro-tremolite'
Formula: ☐{Ca2}{Mg5}(Si8O22)F2
Localities: St. Joe No. 3 Mine, Balmat, Balmat-Edwards Zinc District, St. Lawrence Co., New York, USA
Atlas Quarry (Empire Quarry), Pine Island, Town of Warwick, Orange Co., New York, USA
Washburn farm chrome tremolite occurrence, Macomb, Macomb Township, St. Lawrence Co., New York, USA
Red-Back Mine (Redback mine), Tuxedo Lake, Town of Tuxedo, Orange Co., New York, USA
Rhein property, Amity, Town of Warwick, Orange Co., New York, USA
Photo: Fluoro-tremolite from Rhein property, Amity, Town of Warwick, Orange Co., New York, USA
Fluorowardite (TL)
Formula: NaAl3(PO4)2F2(OH)2(H2O)2
Type Locality: Silver Coin Mine, Valmy, Iron Point District, Humboldt Co., Nevada, USA
Reference: Kampf, A.R., Adams, P.M. and Housley, R.M. (2012): Fluorowardite, IMA 2012-016. CNMNC Newsletter No. 13, June 2012, page 816; Mineralogical Magazine, 76, 807-817
Fluorphosphohedyphane (TL)
Formula: Ca2Pb3(PO4)3F
Type Locality: Blue Bell Mine (Blue Bell claims; Hard Luck Mine; Hard Luck claims; Atkinson), Baker, Soda Lake Mts, San Bernardino Co., California, USA
Habit: Hexagonal crystals elongated along the C-axis.
Colour: Clear to white.
Reference: Kampf, A.R. & Housley, R.M. (2011): Fluorphosphohedyphane, Ca2Pb3(PO4)3F, the first apatite supergroup mineral with essential Pb and F. American Mineralogist, 96, 423-429.
Photo: © Brent Thorne 2010. Fluorphosphohedyphane from Blue Bell Mine, Baker, Soda Lake Mts, San Bernardino Co., California, USA
'Fluorplumbopyrochlore' (TL)
Formula: (Pb,Y,Th,U,Na,Ca)2-x(Nb,Ti)2O6F
Type Locality: Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Reference: Pavel M. Kartashov analytical data (2004), material of D.I. Belakovsky
Photo: © Pavel M. Kartashov. Fluorplumbopyrochlore from Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Fluorstrophite
Formula: SrCaSr3(PO4)3F
Locality: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Fluorthalénite-(Y)
Formula: Y3(Si3O10)F
Locality: White Cloud pegmatite, South Platte Pegmatite District, Jefferson Co., Colorado, USA
Fluor-uvite (TL)
Formula: Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
Type Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Habit: Crystals show first and second order prism and first and second order trigonal pyramids. The crystal habit is equant to only slightly elongated along "c". Oftentimes, the crystals are asymmetrical.
Colour: Full range of light to dark greens including olive green and brownish green through greenish brown.
Fluorescence: Orange yellow in short wave ultraviolet
Reference: Dunn, P. J., Appleman, D., Nelen, J., and Norberg, J. 1977, Uvite, a New (Old) Common Member of the Tourmaline Group and Its Implications for Collections, Mineralogical Record, v. 8, p. 100-108.
Localities: Recorded from at least 16 other localities in this region.
Photo: © Betts. Fluor-uvite from Reese Farm, Gouverneur, St. Lawrence Co., New York, USA
Foggite (TL)
Formula: CaAl(PO4)(OH)2 · H2O
Type Locality: Palermo No. 1 Mine (Palermo No. 1 pegmatite), Groton, Grafton Co., New Hampshire, USA
Reference: Amer.Min.(1975) 60, 957-964
Photo: © Stephan Wolfsried. Foggite from Palermo No. 1 Mine, Groton, Grafton Co., New Hampshire, USA
Foitite (TL)
Formula: (□,Na)(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3OH
Type Locality: California, USA
Reference: Am.Min. (1993): 78: 1299.
Localities: Recorded from at least 22 other localities in this region.
Photo: © Caltech. Foitite from Schindler Mine, Little Cahuilla Mountain, Cahuilla, Cahuilla District, Riverside Co., California, USA
Footemineite (TL)
Formula: Ca2Mn2+Mn2+2Mn2+2Be4(PO4)6(OH)4 · 6H2O
Type Locality: Foote Lithium Co. Mine (Foote Mine), Kings Mountain District, Cleveland Co., North Carolina, USA
Habit: Prismatic, tapering barrells to 1.7mm in groups to 3mm.
Colour: Pale to bright yellow and yellowish-orange.
Fluorescence: none
Description: Found on dumps. Associated with milarite, rhodochrosite, analcime, fairfieldite, apatite, and eosphorite. This same phase was found in the mid 70s in a similar assemblage with much smaller crystals.
Reference: Atencio, D., Matioli, P.A., Smith, J.B., Chukanov, N.V., Coutinho, J.M.V., Rastsvetaeva, R.K., Möckel, S. (2008): Footemineite, the Mn-analog of atencioite, from the Foote mine, Kings Mountain, Cleveland County, North Carolina, U.S.A., and its relationship with other roscherite-group minerals. American Mineralogist, 93, 1-6.
Photo: © 2006 JBS. Footemineite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Fornacite
Formula: Pb2Cu(CrO4)(AsO4)(OH)
Localities: Reported from at least 54 localities in this region.
Photo: © 2009 ROM. Fornacite from Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Forsterite
Formula: Mg2SiO4
Localities: Reported from at least 201 localities in this region.
Photo: © Charles Creekmur. Forsterite from Kilbourne Hole, Doña Ana Co., New Mexico, USA
Forsterite var: Peridot
Localities: Reported from at least 9 localities in this region.
Photo: © Orbital Joe. Peridot from Peridot Mesa, San Carlos, San Carlos Indian Reservation, Gila Co., Arizona, USA
Foshagite (TL)
Formula: Ca4(Si3O9)(OH)2
Type Locality: Crestmore quarries, Crestmore, Riverside Co., California, USA
Reference: Eakle, Arthur Starr (1925a), Foshagite, a new silicate from Crestmore, California: American Mineralogist: 10: 97-99.
Localities: Recorded from at least 2 other localities in this region.
Photo: © Paul Bongaerts. Foshagite from Crestmore quarries, Crestmore, Riverside Co., California, USA
Fourmarierite
Formula: Pb(UO2)4O3(OH)4 · 4H2O
Localities: Reported from at least 28 localities in this region.
Photo: © 2009, JGW. Fourmarierite from Pick's Delta Mine, Delta, San Rafael District, Emery Co., Utah, USA
Fraipontite
Formula: (Zn,Al)3((Si,Al)2O5)(OH)4
Localities: Reported from at least 15 localities in this region.
Photo: © Brent Thorne. Fraipontite from War Eagle Mine, Shoshone Mine group, Upper Noonday Camp, Nopah Range, Inyo Co., California, USA
Fraipontite var: Cuprian Fraipontite
Locality: Silver Bill Mine, Costello Mine group (Costello claims), Gleeson, Turquoise District (Courtland-Gleeson District), Dragoon Mts, Cochise Co., Arizona, USA
Photo: Cuprian Fraipontite from Silver Bill Mine, Costello Mine group, Gleeson, Turquoise District, Dragoon Mts, Cochise Co., Arizona, USA
Francevillite
Formula: (Ba,Pb)(UO2)2(VO4)2 · 5H2O
Localities: Packerton Junction, Carbon Co., Pennsylvania, USA
Pandora Mine, Paradox Valley District, Paradox Valley, San Juan Co., Utah, USA
Photo: © Brent Thorne. Francevillite from Pandora Mine, Paradox Valley District, Paradox Valley, San Juan Co., Utah, USA
Franciscanite (TL)
Formula: Mn2+6(V5+,☐)2(SiO4)2(O,OH)6
Type Locality: Pennsylvania Mine, San Antonio Valley, Mount Hamilton, Black Wonder District, Diablo Range, Santa Clara Co., California, USA
Reference: Amer.Min.(1986) 71, 1522-1526; www.mineralsocal.org
Photo: © . Franciscanite from Pennsylvania Mine, San Antonio Valley, Mount Hamilton, Black Wonder District, Diablo Range, Santa Clara Co., California, USA
Franckeite
Formula: Fe2+(Pb,Sn2+)6Sn4+2Sb2S14
Localities: Pacific Limestone Products Quarry (Kalkar Quarry), Santa Cruz, Santa Cruz Co., California, USA
Darwin Mines (Darwin group; Defiance; Driver; Independence; Lane; Liberty; Lucky Jim; Southwest and Thompson; Bernon; Rip Van Winkle; Mexicanus Colorado Inc.), Darwin, Darwin District, Darwin Hills, Inyo Co., California, USA
Thompson Mine, Darwin Mine (Anaconda; Bernon Mine; Defiance Mine; Essex Mine; Independence Mine; Intermediate Mine; Rip Van Winkle Mine; Thompson Mine), Darwin, Darwin District, Darwin Hills, Inyo Co., California, USA
Photo: © mwminerals.com. Franckeite from Pacific Limestone Products Quarry, Santa Cruz, Santa Cruz Co., California, USA
Frankdicksonite (TL)
Formula: BaF2
Type Locality: Carlin Gold mine, Elko, Lynn District, Eureka Co., Nevada, USA
Reference: Amer.Min.(1974) 59, 885-888; Min.Rec.:20:469.
Frankhawthorneite (TL)
Formula: Cu2Te6+O4(OH)2
Type Locality: Centennial Eureka Mine (Blue Rock), Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Reference: ROBERTS, A.C., GRICE, J.D., CRIDDLE, A.J., JENSEN, M.C. HARRIS, D.C. & MOFFATT, E.A. (1995): Frankhawthorneite, Cu2Te6+O4(OH)2, a new mineral species from the Centennial Eureka mine, Tintic District, Juab Co., Utah, USA. Canadian Mineralogist 33, 641-647.
Localities: Recorded from at least 1 other locality in this region.
Photo: © Thomas Witzke. Frankhawthorneite from Centennial Eureka Mine, Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Franklinfurnaceite (TL)
Formula: Ca2Fe3+Mn2+3Mn3+(Zn2Si2O10)(OH)8
Type Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Reference: Dunn, P.J., et al: Am. Min.:72:812-815 (1987); Dunn(1995):Pt4:493-494.
Photo: © Van King. Franklinfurnaceite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Franklinite (TL)
Formula: Zn2+Fe3+2O4
Type Locality: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Habit: Octahedral, dodecahedral, modified octahedrons
Colour: Black
Fluorescence: None
Description: Occurs as a major ore mineral from massive to granular, disseminated granular, and crystals, both free-growing and embedded in calcite.
Reference: Palache(1935):47-48; Dunn(1995):Pt4:566-578.
Localities: Recorded from at least 18 other localities in this region.
Photo: © . Franklinite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Franklinphilite (TL)
Formula: (K,Na)4(Mn,Zn,Mg,Fe)48(Si,Al)72(O,OH)216 · 6H2O
Type Locality: Buckwheat pit (Southwest opening; Buckwheat Mine), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Reference: Dunn, et al: Franklinphilite, the manganese analog of stilpnomelane, from Franklin, NJ: Min. Rec.:23:465-468 (1992); Dunn(1995):Pt4:472.
Photo: © 2007, JGW. Franklinphilite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Fransoletite (TL)
Formula: Ca3Be2(PO4)2(HPO4)2 · 4H2O
Type Locality: Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA
Reference: Rocks & Minerals: 60: 117.
Photo: © Christian Rewitzer. Fransoletite from Tip Top Mine, Fourmile, Custer District, Custer Co., South Dakota, USA
Freboldite
Formula: CoSe
Locality: Temple Mountain, San Rafael District (San Rafael Swell), Emery Co., Utah, USA
Photo: © 2007, JGW. Freboldite from Temple Mountain, San Rafael District, Emery Co., Utah, USA
Freibergite
Formula: Ag6[Cu4Fe2]Sb4S13-x
Localities: Reported from at least 142 localities in this region.
Photo: © Maurice de Graaf. Freibergite from Galena Mine, Osburn, Coeur d'Alene District, Shoshone Co., Idaho, USA
'Freibergite-Tetrahedrite Series'
Locality: Cerro Gordo District, Inyo Mts (Inyo Range), Inyo Co., California, USA
Freieslebenite
Formula: AgPbSbS3
Localities: Reported from at least 8 localities in this region.
Fresnoite (TL)
Formula: Ba2Ti(Si2O7)O
Type Locality: Esquire No. 7 claim, Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Colour: Yellow
Description: Occurs as grains from 0.1 mm or less to 3 mm in size with the average at about 0.3 mm. Occurs in quartzite or quartz-sanbornite rock, associated with celsian, titantaramellite, diopside and pyrrhotite.
Reference: [Amer.Min.(1965) 50, 314-340; MinRec 33:161]; American Mineralogist (1981), Volume 66, pages 1050-1053; Canadian Mineralogist (2001): 39:1053-1058.
Localities: Recorded from at least 9 other localities in this region.
Photo: © Rob Lavinsky. Fresnoite from Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
Friedelite
Formula: (Mn,Fe)8Si6O15(OH,Cl)10
Localities: Reported from at least 6 localities in this region.
Photo: © 2010, JGW. Friedelite from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Friedrichite
Formula: Pb5Cu5Bi7S18
Localities: Reported from at least 9 localities in this region.
Photo: © Dan & Diana Weinrich Minerals. Friedrichite from Victorio District, Luna Co., New Mexico, USA
Frohbergite
Formula: FeTe2
Localities: Joe Mine (Joe shaft), Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
North Carolina, USA
Gold Hill, San Simon Basin (San Simon River; Bowie Chabazite deposit), Bowie area, Cochise Co., Arizona, USA
Good Hope Mine (Mammoth Good Hope Mine; Mammoth-Good Hope Mine; Mammoth Chimney Mine), Vulcan, Vulcan District (Cebolla District; Domingo District), Gunnison Co., Colorado, USA
Star Mine (Reynolds Mine), Carolina Slate Belt, Montgomery Co., North Carolina, USA ? (more information)
Photo: © 2007, JGW. Frohbergite from Gold Hill, San Simon Basin, Bowie area, Cochise Co., Arizona, USA
Frondelite
Formula: Mn2+Fe3+4(PO4)3(OH)5
Localities: Reported from at least 10 localities in this region.
Photo: © Stephan Wolfsried. Frondelite from Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Froodite
Formula: α-PdBi2
Localities: Fox Gulch (Fox Gulch Platinum placer), Salmon River - Red Mountain District, Goodnews Bay, Bethel Borough, Alaska, USA
Minnamax deposit (Babbitt deposit; Babbitt Lake deposit; Amax Underground Mine), Ely-Hoyt Lakes Area, St. Louis Co., Minnesota, USA
Fuettererite (TL)
Formula: Pb3Cu2+6Te6+O6(OH)7Cl5
Type Locality: NE2 vein, Otto Mountain, Baker, San Bernardino Co., California, USA
Reference: Kampf, A.R., Mills, S.J., Housley, R.M. and Marty, J. (2012) Fuettererite, IMA 2011-111. CNMNC Newsletter No. 13, June 2012, page 811; Mineralogical Magazine, 76, 807-817.
Localities: Recorded from at least 1 other locality in this region.
Photo: © . Fuettererite from Bird Nest drift, Otto Mountain, Baker, San Bernardino Co., California, USA
Fülöppite
Formula: Pb3Sb8S15
Localities: Steward Mine (Stewart mine), Gillham, Sevier Co., Arkansas, USA
White Crow, Gold Hill District, Boulder Co., Colorado, USA
'Gadolinite'
Localities: Reported from at least 49 localities in this region.
Photo: © 2007, F. Roberts. Gadolinite from Petrick pegmatite, Kingsland Granite Company Quarry, Llano Co., Texas, USA
Gadolinite-(Ce)
Formula: (Ce,La,Nd,Y)2Fe2+Be2Si2O10
Localities: Reported from at least 6 localities in this region.
Photo: © Saul Krotki 2009. Gadolinite-(Ce) from Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Gadolinite-(Y)
Formula: Y2Fe2+Be2Si2O10
Localities: Reported from at least 21 localities in this region.
Photo: Gadolinite-(Y) from Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Gagarinite-(Y)
Formula: NaCaYF6
Locality: Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Photo: © 2002 DM. Gagarinite-(Y) from Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Gageite (TL)
Formula: Mn21(Si4O12)2O3(OH)20
Type Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Reference: Palache(1935): 111; Dunn(1995): Pt3: 460.
Localities: Recorded from at least 3 other localities in this region.
Photo: © JBS 2006. Gageite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Gageite-2M (TL)
Formula: (Mn,Mg,Zn)42Si16O54(OH)40
Type Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Reference: American Mineralogist (1987): 72: 382-391.
Gahnite
Formula: ZnAl2O4
Localities: Reported from at least 149 localities in this region.
Photo: © Rob Lavinsky. Gahnite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Gaidonnayite
Formula: Na2Zr(Si3O9) · 2H2O
Localities: Big Rock Quarry (3M Quarry; Arch Street Pike Quarry), Granite Mountain area, Little Rock, Pulaski Co., Arkansas, USA
Wind Mountain, Cornudas Mts, Otero Co., New Mexico, USA
Granite Mountain area, Little Rock, Pulaski Co., Arkansas, USA
Jones Mill Quarry (Martin Marietta Quarry; Highway 51 Quarry; Mid-State Quarry), Magnet Cove, Hot Spring Co., Arkansas, USA
Photo: © C. Stefano '09. Gaidonnayite from Jones Mill Quarry, Magnet Cove, Hot Spring Co., Arkansas, USA
Gainesite (TL)
Formula: Na(Na,K)(Be,Li)Zr2(PO4)4 · 1.5-2H2O
Type Locality: Nevel Quarry (Twin tunnels; United Feldspar Quarry), Newry, Oxford Co., Maine, USA
Reference: Amer.Min.(1983) 68, 1022-1028; "Mineralogy of Maine, Vol. 1" by King, V.T. & Foord, E.E., Maine Geologic Survey, 1994
Photo: Gainesite from Nevel Quarry, Newry, Oxford Co., Maine, USA
Gaitite
Formula: Ca2Zn(AsO4)2 · 2H2O
Localities: Twin Creeks Mine, Potosi District, Osgood Mts, Humboldt Co., Nevada, USA
Vista pit, Twin Creeks Mine, Potosi District, Humboldt Co., Nevada, USA
Photo: © 2007, JGW. Gaitite from Twin Creeks Mine, Potosi District, Osgood Mts, Humboldt Co., Nevada, USA
Galaxite (TL)
Formula: (Mn,Fe,Mg)(Al,Fe)2O4
Type Locality: Bald Knob deposit (Primary ore body; Crouse Knob deposit), Bald Knob, Sparta, Alleghany Co., North Carolina, USA
Reference: Rocks & Min.: 60:130-135.
Localities: Recorded from at least 5 other localities in this region.
Photo: © 2007, JGW. Galaxite from Bald Knob deposit, Bald Knob, Sparta, Alleghany Co., North Carolina, USA
Galeite (TL)
Formula: Na15(SO4)5F4Cl
Type Locality: Searles Lake, San Bernardino Co., California, USA
Reference: American Mineralogist (1963): 48: 485; Pabst, Adolf, Dwight L. Sawyer, Jr. & George S. Switzer (1955), Galeite, a new mineral from Searles Lake, California (abstract): Geological Society of America: 66: 1658; Pabst, Adolf, Dwight L. Sawyer, Jr. & George S. Switzer (1963), Galeite and related phases in the system Na2SO4.NaF.NaCl: American Mineralogist: 48: 485; Smith, George Irving & D.V. Haines (1964), Character and distribution of nonclastic minerals in the Searles Lake evaporite deposit, California: USGS Bulletin 1181-P: 27; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 281.
Photo: © 2007, JGW. Galeite from Searles Lake, San Bernardino Co., California, USA
Galena
Formula: PbS
Localities: Reported from at least 10274 localities in this region.
Photo: © 2002 John H. Betts. Galena from Baxter Springs, Picher Field, Tri-State District, Cherokee Co., Kansas, USA
Galena var: Argentiferous Galena
Localities: Reported from at least 373 localities in this region.
Photo: © M.Heintzelman. Argentiferous Galena from Wheatley Mines, Phoenixville Mining District, Schuylkill Township, Chester Co., Pennsylvania, USA
Galena var: Auriferous Galena
Localities: Octave Mine (Joker Mine; Bonanza Mine), Octave, Weaver District (Virginia District; Mocking Bird District), Weaver Mts, Yavapai Co., Arizona, USA
Oro Flame Mine (Oro Flame property; American Eagle Mine; Mormon Patent; Old Ohio Patent MS 2025; Gold Bug Mine; Sterling property; Mescal claim; American Eagle Patent; Oro Grand Patent MS 2024), Yavapai Co., Arizona, USA
Doan's Lead Mine (New Britain Mine), New Galena, New Britain Township, Bucks Co., Pennsylvania, USA
Goldfinch Group (Golden Crower; Harmon; Jack; Southside; Goldfinch; Caledonia; Dolphin Claims; All Nations; Three Cheers; Sunny Day; Big Lode), Argenta District, Beaverhead Co., Montana, USA
Pennington Co., South Dakota, USA
Photo: © M.Heintzelman. Auriferous Galena from Doan's Lead Mine, New Galena, New Britain Township, Bucks Co., Pennsylvania, USA
Galena var: Selenian Galena
Formula: Pb(S,Se)
Locality: Virgin No. 3 Mine, Paradox Valley, Uravan District, Montrose Co., Colorado, USA
Galena var: U-Galena
Locality: Bedford, Westchester Co., New York, USA
Galenobismutite
Formula: PbBi2S4
Localities: Reported from at least 26 localities in this region.
Photo: © 2008 Jesse Crawford. Galenobismutite from Memphis Mine, Organ District, Organ Mts, Doña Ana Co., New Mexico, USA
Galileiite (TL)
Formula: {Fe2+}{Na8}{Fe2+4Na4}{Fe2+43}(PO4)36
Type Locality: Grant IIIB meteorite, Zuni Mountains District, Cibola Co., New Mexico, USA
Reference: Meteoritics Planetary Sci.(1997) 32, A155-A156
Galkhaite
Formula: (Cs,Tl)(Hg,Cu,Zn)6(As,Sb)4S12
Localities: Reported from at least 8 localities in this region.
Photo: © 2004 JBS. Galkhaite from Getchell Mine, Adam Peak, Potosi District, Osgood Mts, Humboldt Co., Nevada, USA
Ganomalite
Formula: Pb9Ca5Mn(Si2O7)4(SiO4)O
Localities: Crestmore quarries, Crestmore, Riverside Co., California, USA
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Commercial quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Riverside Co., California, USA
Photo: © 2008, JGW. Ganomalite from Crestmore quarries, Crestmore, Riverside Co., California, USA
Ganophyllite
Formula: (K,Na,Ca)2Mn8(Si,Al)12(O,OH)32 · 8H2O
Localities: Reported from at least 6 localities in this region.
Photo: © Christopher O'Neill. Ganophyllite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Ganterite
Formula: (Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2
Locality: Lincoln Hill dumortierite deposit, Rochester District, Pershing Co., Nevada, USA
Photo: © Caltech. Ganterite from Lincoln Hill dumortierite deposit, Rochester District, Pershing Co., Nevada, USA
'Garnet'
Formula: X3Z2(SiO4)3
Localities: Reported from at least 2783 localities in this region.
Photo: © 2001 John H. Betts. Garnet from Rattlesnake Canyon, Dudleyville, Pinal Co., Arizona, USA
'Garnierite'
Localities: Reported from at least 69 localities in this region.
Photo: © 2009 Matthew Lambert. Garnierite from Adams Brook nickel prospect, Newfane, Windham Co., Vermont, USA
Garrelsite (TL)
Formula: Ba3NaSi2B7O16(OH)4
Type Locality: South Ouray No 1 Well, Uintah Co., Utah, USA
Reference: Am Min 41:672
Localities: Recorded from at least 4 other localities in this region.
Garronite
Formula: Na2Ca5Al12Si20O64 · 27H2O
Localities: Reported from at least 8 localities in this region.
Photo: © . Garronite from Pete's Point, Aneroid Lake, Joseph, Wallowa Co., Oregon, USA
Gartrellite
Formula: Pb(Cu,Fe3+,Zn)2(AsO4,SO4)2 · 2(H2O,OH)
Localities: Centennial Eureka Mine (Blue Rock), Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Gold Hill Mine (Western Utah Mine), Gold Hill, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
Black Pine Mine (Combination Mine; Black Pine tailings; Black Pine dump), Black Pine Ridge, John Long Mts, Philipsburg District (Flint Creek District), Granite Co., Montana, USA
Photo: © Brent Thorne. Gartrellite from Centennial Eureka Mine, Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Garyansellite
Formula: (Mg,Fe)3(PO4)2(OH,O) · 1.5H2O
Locality: Big Chief Mine (Johnson pegmatite), Glendale, Keystone District, Pennington Co., South Dakota, USA
Gasparite-(Ce)
Formula: (Ce,REE)(AsO4)
Localities: Taylor Creek Tin District (Black Range Tin District), Sierra Co., New Mexico, USA
Squaw Creek Mine, Taylor Creek Tin District (Black Range Tin District), Sierra Co., New Mexico, USA
Beryllium Virgin claim, Paramount Canyon, Sierra Co., New Mexico, USA
Photo: Gasparite-(Ce) from Beryllium Virgin claim, Paramount Canyon, Sierra Co., New Mexico, USA
Gatumbaite
Formula: CaAl2(PO4)2(OH)2 · H2O
Locality: Palermo No. 1 Mine (Palermo No. 1 pegmatite), Groton, Grafton Co., New Hampshire, USA - erroneously reported
Gaylussite
Formula: Na2Ca(CO3)2 · 5H2O
Localities: Reported from at least 26 localities in this region.
Photo: © 2008 Jesse Crawford. Gaylussite from Searles Lake, San Bernardino Co., California, USA
Gearksutite
Formula: Ca[Al(F,OH)5(H2O)]
Localities: Reported from at least 22 localities in this region.
Photo: Gearksutite from Morefield Mine, Winterham, Amelia Co., Virginia, USA
Gedrite
Formula: ☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Localities: Reported from at least 40 localities in this region.
Photo: © 2006 Peter Cristofono. Gedrite from Pond Hill locality, Lisbon, Grafton Co., New Hampshire, USA
Geerite (TL)
Formula: Cu8S5
Type Locality: Geerite locality, De Kalb Township, St. Lawrence Co., New York, USA
Reference: Canadian Mineralogist Vol. 18, pp. 519-523 (1980)
Localities: Recorded from at least 2 other localities in this region.
Photo: © 2007 Peter Cristofono. Geerite from De Kalb Township, St. Lawrence Co., New York, USA
Gehlenite
Formula: Ca2Al(AlSiO7)
Localities: Reported from at least 16 localities in this region.
Photo: © 2008 Jesse Crawford. Gehlenite from Paraspurrite Type Locality occurrence, Darwin, Darwin District, Darwin Hills, Inyo Co., California, USA
Geikielite
Formula: MgTiO3
Localities: Reported from at least 10 localities in this region.
Photo: Geikielite from Rhein property, Amity, Town of Warwick, Orange Co., New York, USA
Genkinite
Formula: (Pt,Pd,Rh)4Sb3
Locality: Fox Gulch (Fox Gulch Platinum placer), Salmon River - Red Mountain District, Goodnews Bay, Bethel Borough, Alaska, USA
Genthelvite (TL)
Formula: Zn4(Be3Si3O12)S
Type Locality: West Cheyenne Canon, Cheyenne District (St. Peters Dome District), El Paso Co., Colorado, USA
Description: 2 specimens known.
Reference: Minerals of Colorado (1997) Eckel, E. B.
Localities: Recorded from at least 19 other localities in this region.
Photo: © Saul Krotki 2008. Genthelvite from Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
'Genthite'
Locality: Webster-Balsam, Jackson Co., North Carolina, USA
Geocronite
Formula: Pb14(Sb,As)6S23
Localities: Reported from at least 25 localities in this region.
Photo: © 2011, JGW. Geocronite from Flathead Mine, Kofford Ridge, Hog Heaven District, Flathead Co., Montana, USA
'Geode'
Localities: Reported from at least 12 localities in this region.
Photo: Geode from Bedford, Lawrence Co., Indiana, USA
Georgechaoite (TL)
Formula: NaKZr[Si3O9] · 2H2O
Type Locality: Wind Mountain, Cornudas Mts, Otero Co., New Mexico, USA
Reference: BOGGS, R.L. & GHOSE, S. (1985): Georgechaoite NaKZrSi3O92H2O, a new mineral species from Wind Mountain, New Mexico. Canadian Mineralogist 23, 1 4. GHOSE, S. & THAKUR, P. (1985): The crystal structure of georgechaoite. Canadian Mineralogist 23, 5-10.
Photo: © 2004 JBS. Georgechaoite from Wind Mountain, Cornudas Mts, Otero Co., New Mexico, USA
Georgerobinsonite (TL)
Formula: Pb4(CrO4)2(OH)2FCl
Type Locality: Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Reference: IMA Approvals - Nov.2009
Photo: Georgerobinsonite from Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Gerhardtite (TL)
Formula: Cu2(NO3)(OH)3
Type Locality: United Verde Mine (The Big Hole; Big Hole property; Hull Mine; Hopewell tunnel; Patented claim 3480; Patented claim 2812; Patented claims 3348), Jerome, Verde District, Black Hills (Black Hill Range), Yavapai Co., Arizona, USA
Description: Crystals to ¼ inch on fractures in massive cuprite.
Reference: Wells, H.L. & S.L. Penfield (1885), Gerhardtite and artificial cupric nitrates, American Journal of Science: 30: 50-57; Dana 6: 1094; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 309; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 230-231; Galbraith, F.W. & Brennan (1959), Minerals of AZ: 56.
Localities: Recorded from at least 7 other localities in this region.
Photo: © Brent Thorne 2010. Gerhardtite from Greenland Township, Ontonagon Co., Michigan, USA
Germanite
Formula: Cu13Fe2Ge2S16
Localities: Inexco Mine, Jamestown District, Boulder Co., Colorado, USA
Humboldt Mine, Inexco Mine, Jamestown District, Boulder Co., Colorado, USA
Bornite, Ruby Creek Prospect, Shungnak District, Northwest Arctic Borough, Alaska, USA
Gersdorffite
Formula: NiAsS
Localities: Reported from at least 55 localities in this region.
Photo: Gersdorffite from Snowbird mine, Fish Creek, Alberton, Mineral Co., Montana, USA
Gerstleyite (TL)
Formula: Na2(Sb,As)8S13 · 2H2O
Type Locality: Baker mine, U.S. Borax Mine (Pacific West Coast Borax; Pacific Coast Borax Co.; Boron Mine; U.S. Borax and Chemical Corp.; Kramer Mine; Baker Mine), Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
Reference: American Mineralogist 41 (1956), 839-843
Localities: Recorded from at least 5 other localities in this region.
Photo: © Rob Lavinsky. Gerstleyite from Baker mine, U.S. Borax Mine, Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
Gerstmannite (TL)
Formula: MnMgZn(SiO4)(OH)2
Type Locality: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Habit: Platy masses, individual microscopic crystals rare.
Colour: Colorless, pale tan
Fluorescence: None
Reference: Moore, P.B. & Araki, T.: Am.Min.:62:51-59 (1977); Dunn(1995):Pt3:369.
Photo: Gerstmannite from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Getchellite (TL)
Formula: AsSbS3
Type Locality: Getchell Mine (North Pit; Center pit; South pit), Adam Peak, Potosi District, Osgood Mts, Humboldt Co., Nevada, USA
Reference: Weissberg, B. G. (1965): Getchellite, AsSbS3, a new mineral from Humboldt County, Nevada, American Mineralogist, 50, 1817-1826 ; American Mineralogist, Volume 68, pages 235-244, 1983
Localities: Recorded from at least 5 other localities in this region.
Photo: © Tagliabue-Foschi. Getchellite from Getchell Mine, Adam Peak, Potosi District, Osgood Mts, Humboldt Co., Nevada, USA
Geversite
Formula: PtSb2
Locality: Fox Gulch (Fox Gulch Platinum placer), Salmon River - Red Mountain District, Goodnews Bay, Bethel Borough, Alaska, USA
Gianellaite (TL)
Formula: (Hg2N)2SO4
Type Locality: Mariposa Mine (California Mountain Mine), Terlingua District, Brewster Co., Texas, USA
Reference: Neues Jahrb. Min., Mh. (1977): 119-131.
Localities: Recorded from at least 1 other locality in this region.
Photo: Gianellaite from Mariposa Mine, Terlingua District, Brewster Co., Texas, USA
Gibbsite (TL)
Formula: Al(OH)3
Type Locality: Richmond, Berkshire Co., Massachusetts, USA
Reference: Torrey (1822), New York. Med. Phys. Journal: 1, no. 1: 68.
Localities: Recorded from at least 152 other localities in this region.
Photo: © M.Heintzelman. Gibbsite from General Trimble's Mine, East Whiteland Township, Chester Co., Pennsylvania, USA
Gilalite (TL)
Formula: Cu5Si6O17 · 7H2O
Type Locality: Christmas Mine (Red Bird shafts; Inspiration Mine; Hackberry shafts), Christmas, Christmas area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA
Colour: Green to blue-green
Description: Occurs as abundant coatings or thick botryoidal crusts on fracture surfaces or embedded in the rock; replacing diopside; as micro green spheres.
Reference: Cesbron, F.P. & S.A. Williams (1980), Apachite and gilalite, two new copper silicates from Christmas, AZ, Min.Mag.: 43: 639-641; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 231, 428.
Localities: Recorded from at least 2 other localities in this region.
Photo: © François Périnet. Gilalite from Christmas Mine, Christmas, Christmas area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA
Gillespite (TL)
Formula: BaFe2+[Si4O10]
Type Locality: Dry Delta, Alaska Range, Yukon-Koyukuk Borough, Alaska, USA
Description: Found in a small rock specimen in the glacial moraine near the head of Dry Delta.
Reference: J.Washington Acad.Sci.(1922) 12, 7-8; Amer. Mineral (1929) 14:319-322
Localities: Recorded from at least 5 other localities in this region.
Photo: © 2008 Peter Cristofono. Gillespite from Esquire No. 7 claim, Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Gillulyite (TL)
Formula: Tl2(As,Sb)8S13
Type Locality: Lulu cut, South Mercur Pit, Mercur District (Camp Floyd District), Oquirrh Mts, Tooele Co., Utah, USA
Reference: American Mineralogist, Volume 76, pages 653-656, 1991
Photo: © Brent Thorne. Gillulyite from Lulu cut, South Mercur Pit, Mercur District, Oquirrh Mts, Tooele Co., Utah, USA
Gilmarite
Formula: Cu3(AsO4)(OH)3
Locality: Centennial Eureka Mine (Blue Rock), Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Ginorite
Formula: Ca2B14O23 · 8H2O
Localities: Hard Scramble claim, Ryan, Furnace Creek District (Furnace Creek Borate District; Death Valley Area Borate Deposits; Ryan area), Inyo Co., California, USA
South Meridian claim, Twenty Mule Team Canyon, Furnace Creek District (Furnace Creek Borate District; Death Valley Area Borate Deposits; Ryan area), Inyo Co., California, USA
Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek District (Furnace Creek Borate District; Death Valley Area Borate Deposits; Ryan area), Inyo Co., California, USA
Salt swell, Clarke Co., Alabama, USA
East Coleman Mine, Furnace Creek, Death Valley, Inyo Co., California, USA
Photo: © Simone Citon. Ginorite from East Coleman Mine, Furnace Creek, Death Valley, Inyo Co., California, USA
'Giorgiosite'
Formula: Mg5(CO3)4(OH)2 · 5-6H2O
Locality: Lansford, Carbon Co., Pennsylvania, USA
Giraudite
Formula: Cu6[Cu4(Fe,Zn)2]As4Se13
Locality: Talapoosa mine, Talapoosa District, Lyon Co., Nevada, USA
Girdite (TL)
Formula: H2Pb3(Te4+O3)(Te6+O6)
Type Locality: Grand Central Mine, Contention-Grand Central Mine group, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Description: Occurs as dense, chalky spherules to 3 mm diameter & some to 6 mm.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 232.
Localities: Recorded from at least 2 other localities in this region.
Photo: © Brent Thorne. Girdite from Grand Central Mine, Contention-Grand Central Mine group, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
'Gismondine'
Localities: Reported from at least 11 localities in this region.
Photo: © DM 06. Gismondine from Devils Backbone, North Fork John Day River, Grant Co., Oregon, USA
Gismondine-Ca
Formula: CaAl2Si2O8 · 4H2O
Localities: Kuppa quarry, Oahu Island, Honolulu Co., Hawaii, USA
Alexander Dam, Kauai Island, Kauai Co., Hawaii, USA
Tantalus Craters, Oahu Island, Honolulu Co., Hawaii, USA
Horseshoe Dam area (Horseshoe Dam Clinoptilolite occurrence), Maricopa Co., Arizona, USA ? (more information)
Photo: © T. Kennedy 2002. Gismondine-Ca from Kuppa quarry, Oahu Island, Honolulu Co., Hawaii, USA
Gittinsite
Formula: CaZrSi2O7
Localities: Prince of Wales Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA
Pajarito Mountain, Otero Co., New Mexico, USA
Giuseppettite ?
Formula: (Na,K,Ca)7-8(Al6Si6O24)(SO4,Cl)1-2
Locality: Gordon Butte, Meagher Co., Montana, USA
Gladite
Formula: PbCuBi5S9
Localities: Comstock Mine, Dos Cabezas (Two Heads) District, Dos Cabezas Mts, Cochise Co., Arizona, USA
Comstock Mine area, Dos Cabezas (Two Heads) District, Dos Cabezas Mts, Cochise Co., Arizona, USA
Peace of Mine Group Prospect, Germania Creek District, Blaine Co., Idaho, USA
Golden Sunlight Mine (Telluride; and Excelsior; Moonlight Buffalo; Blue Moose; Minera Hill; Sunlight), Whitehall District (Cardwell District), Jefferson Co., Montana, USA
'Glass'
Locality: Umbarger meteorite, Randall Co., Texas, USA
Glauberite
Formula: Na2Ca(SO4)2
Localities: Reported from at least 31 localities in this region.
Photo: © Martins da Pedra. Glauberite from Camp Verde District, Yavapai Co., Arizona, USA
Glaucocerinite
Formula: (Zn1-xAlx)(OH)2(SO4)x/2 · nH2O
Locality: Maid of Sunshine Mine, Turquoise District (Courtland-Gleeson District), Dragoon Mts, Cochise Co., Arizona, USA
Glaucochroite (TL)
Formula: CaMn2+SiO4
Type Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Colour: blue, blue-gray, tan
Fluorescence: None.
Reference: Palache (1935): 79; Dunn (1995): Pt3: 343.
Photo: © 2007 Peter Cristofono. Glaucochroite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Glaucodot
Formula: (Co0.50Fe0.50)AsS
Localities: Reported from at least 12 localities in this region.
Glauconite
Formula: (K,Na)(Fe3+,Al,Mg)2((Si,Al)4O10)(OH)2
Localities: Reported from at least 180 localities in this region.
Photo: © Lee Johnson. Glauconite from Hiawatha No. 1 Mine, Hiawatha Group, Stambaugh, Menominee iron range, Iron Co., Michigan, USA
Glaucophane
Formula: ◻[Na2][Mg3Al2]Si8O22(OH)2
Localities: Reported from at least 81 localities in this region.
Photo: © Karl Volkman04/05. Glaucophane from Sonoma Co., California, USA
Glaucophane Group
Formula: ◻[Na2][Z2+3Al2]Si8O22(OH,F,Cl)2
Locality: Tupper Rock, Bandon, Coos Co., Oregon, USA
Glaukosphaerite
Formula: (Cu,Ni)2(CO3)(OH)2
Locality: Key West Mine, Whitney Pocket Basin, Bunkerville District, Clark Co., Nevada, USA
Photo: © Brent Thorne 2013. Glaukosphaerite from Key West Mine, Whitney Pocket Basin, Bunkerville District, Clark Co., Nevada, USA
'Glockerite'
Formula: Fe3+4(SO4)(OH)10·1-3H2O ?
Localities: Gap Mine (Gap Nickel Mine), Gap, Bart Township, Lancaster Co., Pennsylvania, USA
Falls of Schuylkill, Fairmount Park, Philadelphia, Philadelphia Co., Pennsylvania, USA
Ridge Avenue and School Lane Quarries, East Falls, Fairmount Park, Philadelphia, Philadelphia Co., Pennsylvania, USA
Photo: © 2008, JGW. Glockerite from Ridge Avenue and School Lane Quarries, East Falls, Fairmount Park, Philadelphia, Philadelphia Co., Pennsylvania, USA
Glucine
Formula: CaBe4(PO4)2(OH)4 · 0.5H2O
Locality: Mount Mica Quarry, Paris, Oxford Co., Maine, USA
Photo: © mslama. Glucine from Mount Mica Quarry, Paris, Oxford Co., Maine, USA
Glushinskite
Formula: Mg(C2O4) · 2H2O
Localities: Maricopa Co., Arizona, USA
Gila Bend Mts, Maricopa Co., Arizona, USA
Photo: © 2008, JGW. Glushinskite from San Simon Basin, Bowie area, Cochise Co., Arizona, USA
'Gmelinite'
Localities: Reported from at least 29 localities in this region.
Photo: © 2002 John H. Betts. Gmelinite from Woodland Park, Passaic Co., New Jersey, USA
'Gmelinite var: Ledererite'
Locality: Devils Backbone, North Fork John Day River, Grant Co., Oregon, USA
Gmelinite-Ca
Formula: (Ca,Na2)[Al2Si4O12] · 6H2O
Locality: Owyhee Dam, Lake Owyhee State Park, Malheur Co., Oregon, USA
Gmelinite-Na
Formula: (Na2,Ca)[Al2Si4O12] · 6H2O
Localities: Devils Backbone, North Fork John Day River, Grant Co., Oregon, USA
U.S. Borax open pit (Boron pit), U.S. Borax Mine (Pacific West Coast Borax; Pacific Coast Borax Co.; Boron Mine; U.S. Borax and Chemical Corp.; Kramer Mine; Baker Mine), Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
Photo: © DM 06. Gmelinite-Na from Devils Backbone, North Fork John Day River, Grant Co., Oregon, USA
Gobbinsite
Formula: Na4(Ca,Mg,K2)Al6Si10O32 · 12H2O
Locality: Strickland Quarry (Eureka Quarry), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
Godlevskite
Formula: (Ni,Fe)9