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Diablo Range, San Benito Co., California, USA
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Detailed Mineral List:
Actinolite
Formula: ☐{Ca2}{(Mg,Fe2+)5}(Si8O22)(OH)2
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
Unspecified Actinolite occurrence, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Southwest of San Benito Peak, San Benito Peak (San Benito Mountain), San Benito Mountain Natural Area, New Idria District, Diablo Range, San Benito Co., California, USA
Aegirine
Formula: NaFe3+Si2O6
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
Panoche Pass, Diablo Range, San Benito Co., California, USA
Mina Numero Uno, Clear Creek, Hernandez, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © Len Pisciotta 2008. Aegirine from California State Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Agardite-(La)
Formula: (La,Ce)Cu6(AsO4)3(OH)6 · 3H2O
Locality: 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
Agardite-(Y)
Formula: (Y,Ca)Cu6(AsO4)2(AsO4,HAsO4)(OH)6 · 3H2O
Locality: Chlorite Schist Knob area, South of the Dallas Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Albite
Formula: NaAlSi3O8
Reference: Tsujimori, Tatsuki, Liou, Juhn G., and Coleman, Robert G., 2007, Finding of High-Grade Tectonic Blocks from the New Idria Serpentinite Body, Diablo Range, California: Petrologic Constraints on the Tectonic Evolution of a Tectonic Diapir, Geolgical Society of America Special Paperr 419, p. 67-80.
Localities: Recorded from at least 7 other localities in this region.
Photo: © Weinrich Minerals, Inc.. Albite from California State Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
'Almandine-Pyrope Series'
Locality: Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Alunogen
Formula: Al2(SO4)3 · 17H2O
Locality: Lea-Grant Mine (Lea Grant Mine; Toothache Mine; Wild Turkey Mine; Juniper Mine; Jupiter Mine), Diablo Range, San Benito Co., California, USA
Analcime
Formula: Na2(Al2Si4O12) · 2H2O
Localities: Clear Creek deposits, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
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
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
Southwest of San Benito Peak, San Benito Peak (San Benito Mountain), San Benito Mountain Natural Area, New Idria District, Diablo Range, San Benito Co., California, USA
Anatase
Formula: TiO2
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
Andradite
Formula: Ca3Fe3+2(SiO4)3
Localities: Reported from at least 8 localities in this region.
Photo: © 2004 Peter Cristofono. Andradite from Perovskite Peak, Santa Rita Peak, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, 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 8 localities in this region.
Photo: © 2002 John H. Betts. Melanite from New Idria District, Diablo Range, San Benito Co., California, USA
Andradite var: Topazolite
Localities: New Idria District, Diablo Range, San Benito Co., California, USA
Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
Yellow Cat Mine, New Idria, New Idria District, Diablo Range, San Benito Co., California, USA
San Benito Peak (San Benito Mountain), San Benito Mountain Natural Area, New Idria District, Diablo Range, San Benito Co., California, USA
Unnamed Garnet occurrence, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © JM. Johannet. Topazolite from Yellow Cat Mine, New Idria, New Idria District, Diablo Range, San Benito Co., California, USA
Anilite
Formula: Cu7S4
Locality: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Anthophyllite
Formula: ☐{Mg2}{Mg5}(Si8O22)(OH)2
Locality: Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
Antigorite
Formula: Mg3(Si2O5)(OH)4
Localities: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
New Idria District, Diablo Range, San Benito Co., California, USA
'Apatite'
Localities: Reported from at least 6 localities in this region.
Photo: © Len Pisciotta 2008. Apatite from California State Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Aragonite
Formula: CaCO3
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
Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Artinite pit, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Arsenopyrite
Formula: FeAsS
Locality: Molina Mine (Molino Mine), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Artinite
Formula: Mg2(CO3)(OH)2 · 3H2O
Localities: Reported from at least 6 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
'Asbestos'
Localities: San Benito Asbestos Company Mine, Sampson Peak, New Idria District, Diablo Range, San Benito Co., California, USA
St. Thomas Mine (Simms Asbestos property), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Unnamed Asbestos prospect (2), Santa Rita Peak, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Unnamed Asbestos occurrence (5), San Benito Peak (San Benito Mountain), San Benito Mountain Natural Area, New Idria District, Diablo Range, San Benito Co., California, 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.
Baddeleyite
Formula: ZrO2
Localities: 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
Chlorite Schist Knob area, South of the Dallas Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, 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
Baotite
Formula: Ba4(Ti,Nb)8Si4O28Cl
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
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
'Barkevikite'
Locality: 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 - erroneously reported
Baryte
Formula: BaSO4
Localities: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Yellow Jacket Mine, Stayton District (McLeod District; Panoche District), Hollister, Diablo Range, San Benito Co., California, USA
Beidellite
Formula: (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Localities: 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
Chlorite Schist Knob area, South of the Dallas Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Bementite
Formula: Mn7Si6O15(OH)8
Localities: Hawkins Mine (Hawkins Ranch), Antimony Peak, Stayton District (McLeod District; Panoche District), Hollister, Diablo Range, San Benito Co., California, USA
Hendricks Mine (Cleveland Mine), Diablo Range, San Benito Co., California, 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 5 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
'Bentonite'
Localities: Ashurst - Lewis pit, Llanada, Diablo Range, San Benito Co., California, USA
Wilbur Ellis Company Bentonite deposit, Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Vallecitos Clay Mine, Sampson Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Ashurst Ranch pit, Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Brochantite
Formula: Cu4(SO4)(OH)6
Locality: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Brucite
Formula: Mg(OH)2
Localities: New Idria District, Diablo Range, San Benito Co., California, USA
Florence Mac Mine (Florence Mack Mine) area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Calcite
Formula: CaCO3
Localities: Reported from at least 10 localities in this region.
Calomel
Formula: (Hg+2)Cl2
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © 2011, JGW. Calomel from Clear Creek claim, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, 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
Celestine
Formula: SrSO4
Locality: Butts Mine (Butts Quicksilver Mine; IXL Mine), Pine Rock summit area, San Benito, Diablo Range, San Benito Co., California, USA
Cervantite
Formula: Sb3+Sb5+O4
Locality: Ambrose Mine (Rip Van Winkle Mine), Stayton District (McLeod District; Panoche District), Hollister, Diablo Range, San Benito Co., California, USA
Chalcanthite
Formula: CuSO4 · 5H2O
Locality: Antelope Mine, Llanada, Diablo Range, San Benito Co., California, USA
Chalcocite
Formula: Cu2S
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
Chalcopyrite
Formula: CuFeS2
Locality: Lewis and Clark claim (Lewis Creek), Diablo Range, San Benito Co., California, USA
'Chert'
Localities: Fries Ranch Mine (Rancho Queen Sabe), Fries Ranch, Antimony Peak, Stayton District (McLeod District; Panoche District), Hollister, Diablo Range, San Benito Co., California, USA
Lawsonite-Glaucophane occurrence, Glaucophane Ridge, Diablo Range, San Benito Co., California, USA
Hawkins Mine (Hawkins Ranch), Antimony Peak, Stayton District (McLeod District; Panoche District), Hollister, Diablo Range, San Benito Co., California, USA
'Chlorite Group'
Localities: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
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
Unnamed Ti-Fe occurrence, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Chlorite Schist Knob area, South of the Dallas Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Chromite
Formula: Fe2+Cr3+2O4
Localities: Reported from at least 19 localities in this region.
Photo: © Paul J Broyles 2011. Chromite from Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O (x < 1)
Localities: Llanada Copper Mine, Llanada, Panoche Valley, Diablo Range, San Benito Co., California, USA
Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
Chrysotile
Formula: Mg3(Si2O5)(OH)4
Localities: Reported from at least 6 localities in this region.
Cinnabar
Formula: HgS
Localities: Reported from at least 43 localities in this region.
Photo: © Morphogenesis 2008. Cinnabar from New Idria District, Diablo Range, San Benito Co., California, USA
'Clay'
Locality: Paicines Clay deposits, Emmett, Diablo Range, San Benito Co., California, 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.
Clinochlore
Formula: (Mg,Fe2+)5Al(AlSi3O10)(OH)8
Reference: Tsujimori, Tatsuki, Liou, Juhn G., and Coleman, Robert G., 2007, Finding of High-Grade Tectonic Blocks from the New Idria Serpentinite Body, Diablo Range, California: Petrologic Constraints on the Tectonic Evolution of a Tectonic Diapir, Geolgical Society of America Special Paperr 419, p. 67-80.
Localities: Recorded from at least 6 other localities in this region.
Photo: © SMS 2008. Clinochlore from New Idria District, Diablo Range, San Benito Co., California, USA
Clinochlore var: Chromian Clinochlore
Formula: Mg5(Al,Cr)2Si3O10(OH)8
Localities: Unspecified Cr occurrence (2), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Unnamed Cr occurrence, San Benito Chrome Mill area, 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
Clinochlore var: Pennine
Localities: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Chlorite Schist Knob area, South of the Dallas Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
'Clinopyroxene Subgroup'
Locality: Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Clinozoisite
Formula: {Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Reference: Tsujimori, Tatsuki, Liou, Juhn G., and Coleman, Robert G., 2007, Finding of High-Grade Tectonic Blocks from the New Idria Serpentinite Body, Diablo Range, California: Petrologic Constraints on the Tectonic Evolution of a Tectonic Diapir, Geolgical Society of America Special Paperr 419, p. 67-80.
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 2 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
Copper
Formula: Cu
Localities: Clear Creek deposits, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © DSW 2014. Copper from Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
Covellite
Formula: CuS
Localities: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
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
'Crossite'
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
Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Panoche Pass, Diablo Range, San Benito Co., California, USA
Mina Numero Uno, Clear Creek, Hernandez, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © minresco.com. Crossite from Mina Numero Uno, Clear Creek, Hernandez, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Cymrite
Formula: BaAl2Si2(O,OH)8 · H2O
Locality: Cymrite-Jadeite occurrence, Panoche Pass, Diablo Range, San Benito Co., California, USA
Datolite
Formula: Ca(HBSiO5)
Localities: Clear Creek deposits, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Clear Creek Canyon, Picacho Peak, New Idria District, Diablo Range, San Benito 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
Formula: (Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
Localities: Northwest of Panoche Pass, Panoche Pass, Llanada, Diablo Range, San Benito Co., California, USA
Panoche Pass, Diablo Range, San Benito Co., California, USA
Desautelsite
Formula: Mg6Mn3+2(OH)16[CO3] · 4H2O
Localities: Artinite pit, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Unnamed prospect, Northeast of Picacho Peak, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © 2004 ROM. Desautelsite from Artinite pit, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Diadochite
Formula: Fe3+2(PO4)(SO4)(OH) · 5H2O
Locality: New Idria Mine (New Idria group; New Hope vein), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Digenite
Formula: Cu9S5
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
Photo: © rocks4u.com. Digenite from California State Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Diopside
Formula: CaMgSi2O6
Localities: Reported from at least 6 localities in this region.
Djurleite
Formula: Cu31S16
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
Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
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: Clear Creek deposits, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Molina Mine (Molino Mine), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
New Idria Mine (New Idria group; New Hope vein), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Santa Rita Mine (Union Carbide Nuclear; Santa Rita Asbestos Mine; Joe 5 pit; Joe 7-5 Mine; KCAC Mine), Santa Rita Peak, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: Dolomite from New Idria District, Diablo Range, San Benito Co., California, 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
Dypingite
Formula: Mg5(CO3)4(OH)2 · 5H2O
Localities: Artinite pit, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Unnamed prospect, Northeast of Picacho Peak, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © D. Preite - M.C.. Dypingite from New Idria District, Diablo Range, San Benito Co., California, 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.
Photo: © Maurice de Graaf. Edgarbaileyite from Clear Creek claim, Picacho Peak, New Idria District, Diablo Range, San Benito 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
Eglestonite
Formula: (Hg2+2)3OCl3(OH)
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Tsujimori, Tatsuki, Liou, Juhn G., and Coleman, Robert G., 2007, Finding of High-Grade Tectonic Blocks from the New Idria Serpentinite Body, Diablo Range, California: Petrologic Constraints on the Tectonic Evolution of a Tectonic Diapir, Geolgical Society of America Special Paperr 419, p. 67-80.
Localities: Recorded from at least 1 other locality in this region.
Epsomite
Formula: MgSO4 · 7H2O
Localities: Yellow Jacket Mine, Stayton District (McLeod District; Panoche District), Hollister, Diablo Range, San Benito Co., California, USA
Clear Creek deposits, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
New Idria Mine (New Idria group; New Hope vein), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, 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
'Feldspar Group'
Locality: Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
'Ferro-Actinolite-Tremolite Series var: Nephrite'
Locality: Paicines Clay deposits, Emmett, Diablo Range, San Benito Co., California, USA
Photo: © Rob Lavinsky . Nephrite from Paicines Clay deposits, Emmett, Diablo Range, San Benito Co., California, USA
Ferro-hornblende
Formula: ☐{Ca2}{Fe2+4Al}(AlSi7O22)(OH)2
Localities: San Benito Peak (San Benito Mountain), San Benito Mountain Natural Area, New Idria District, Diablo Range, San Benito Co., California, USA
New Idria District, Diablo Range, San Benito Co., California, USA
Unnamed Amphibole occurrence (1), WSW of the Dallas Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito 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
Photo: © 2008 Jesse Crawford. Ferro-hornblende from San Benito Peak, San Benito Mountain Natural Area, New Idria District, Diablo Range, San Benito Co., California, USA
Fluorapatite
Formula: Ca5(PO4)3F
Reference: Tsujimori, Tatsuki, Liou, Juhn G., and Coleman, Robert G., 2007, Finding of High-Grade Tectonic Blocks from the New Idria Serpentinite Body, Diablo Range, California: Petrologic Constraints on the Tectonic Evolution of a Tectonic Diapir, Geolgical Society of America Special Paperr 419, p. 67-80.
Localities: Recorded from at least 3 other localities in this region.
Photo: © Minresco. Fluorapatite from San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, 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
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
Fresnoite
Formula: Ba2Ti(Si2O7)O
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
Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © Rob Lavinsky. Fresnoite from Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
Galena
Formula: PbS
Locality: Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
'Garnet'
Formula: X3Z2(SiO4)3
Localities: Crest of hill 4461, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Panoche Pass, Diablo Range, San Benito Co., California, USA
'Garnierite' ?
Locality: Unconfirmed Ni occurrence, Clear Creek deposits, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Gianellaite
Formula: (Hg2N)2SO4
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Glaucophane
Formula: ◻[Na2][Mg3Al2]Si8O22(OH)2
Reference: Tsujimori, Tatsuki, Liou, Juhn G., and Coleman, Robert G., 2007, Finding of High-Grade Tectonic Blocks from the New Idria Serpentinite Body, Diablo Range, California: Petrologic Constraints on the Tectonic Evolution of a Tectonic Diapir, Geolgical Society of America Special Paperr 419, p. 67-80.
Localities: Recorded from at least 5 other localities in this region.
Photo: © Charles Creekmur. Glaucophane from Diablo Range, San Benito Co., California, USA
Goethite
Formula: α-Fe3+O(OH)
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
'Grossular-Hibschite Series'
Locality: Clear Creek deposits, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Grunerite
Formula: ☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2
Locality: Panoche Pass, Diablo Range, San Benito Co., California, USA
Gypsum
Formula: CaSO4 · 2H2O
Localities: Reported from at least 9 localities in this region.
Halotrichite
Formula: FeAl2(SO4)4 · 22H2O
Locality: Yellow Jacket Mine, Stayton District (McLeod District; Panoche District), Hollister, Diablo Range, San Benito Co., California, USA
Hanawaltite (TL)
Formula: (Hg+2)3Hg2+(Cl,OH)2O3
Type Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Reference: Mineralogical Record: 27: 463; Canadian Mineralogist: 34: 61-72.
Hematite
Formula: Fe2O3
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
'Hornblende'
Localities: Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Panoche Pass, Diablo Range, San Benito Co., California, USA
Howieite
Formula: Na(Fe,Mn)10(Fe,Al)2Si12O31(OH)13
Locality: Panoche Pass, Diablo Range, San Benito Co., California, USA
Huntite
Formula: CaMg3(CO3)4
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Hydromagnesite
Formula: Mg5(CO3)4(OH)2 · 4H2O
Localities: Reported from at least 9 localities in this region.
Photo: © JSS. Hydromagnesite from New Idria District, Diablo Range, San Benito Co., California, USA
Hydrotalcite
Formula: Mg6Al2(OH)16[CO3] · 4H2O
Localities: New Idria District, Diablo Range, San Benito Co., California, USA
New Idria Serpentine mass, New Idria District, Diablo Range, San Benito Co., California, USA
Idrialite
Formula: C22H14
Locality: New Idria Mine (New Idria group; New Hope vein), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Ilmenite
Formula: Fe2+TiO3
Localities: New Idria District, Diablo Range, San Benito Co., California, 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
Unnamed Ti-Fe occurrence, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Chlorite Schist Knob area, South of the Dallas Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Santa Rita Mine (Union Carbide Nuclear; Santa Rita Asbestos Mine; Joe 5 pit; Joe 7-5 Mine; KCAC Mine), Santa Rita Peak, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © 2001 John H. Betts. Ilmenite from New Idria District, Diablo Range, San Benito Co., California, USA
Jadeite
Formula: Na(Al,Fe3+)Si2O6
Localities: Clear Creek deposits, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Cymrite-Jadeite occurrence, Panoche Pass, Diablo Range, San Benito Co., California, USA
Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Unnamed Jade occurrence (1), West side of Panoche Valley, Panoche Valley, Diablo Range, San Benito Co., California, USA
Photo: © 4/2004. Jadeite from Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Localities: New Idria Mine (New Idria group; New Hope vein), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Stayton District (McLeod District; Panoche District), Hollister, Diablo Range, San Benito Co., California, USA
Joaquinite-(Ce) (TL)
Formula: NaBa2Ce2FeTi2[Si4O12]2O2(OH,F) · 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: Equant
Colour: Honey-yellow to orange-brown
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: 376; Palache, Charles & William Frederick Foshag (1932), The chemical nature of joaquinite: American Mineralogist: 17: 308-312; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 102, 234; Wise, W.S & Gill, R.H. (1977): Minerals of the Benitoite Gem mine. Mineralogical Record 8, 442-452; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 470.; William S. Wise (1982) Strontiojoaquinite and bario-orthojoaquinite: two new members of the joaquinite group . American Mineralogist 67:809-81
Localities: Recorded from at least 3 other localities in this region.
Photo: © Elmar Lackner 2009. Joaquinite-(Ce) from California State Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Jonesite (TL)
Formula: Ba4(K,Na)2Ti4Al2(Si3O9)2(SiO4)4O2 · 6H2O
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: Radiating aggregates
Colour: Colorless
Description: Occurs as minute crystals.
Reference: Wise, W.S & Gill, R.H. (1977): Minerals of the Benitoite Gem mine. The Mineralogical Record 8, 442-452; Wise, W.S. & Pabst, A. (1977): Jonesite a new mineral from the Benitoite Gem mine, San Benito County, California. The Mineralogical Record 8, 453-456; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 472.
Photo: © 1995-2001 Trinity Mineral Co.. Jonesite from California State Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Kaolinite
Formula: Al2(Si2O5)(OH)4
Locality: Ambrose Mine (Rip Van Winkle Mine), Stayton District (McLeod District; Panoche District), Hollister, Diablo Range, San Benito Co., California, USA
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Locality: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Koninckite
Formula: Fe3+PO4 · 3H2O
Locality: New Idria Mine (New Idria group; New Hope vein), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Lawsonite
Formula: CaAl2(Si2O7)(OH)2 · H2O
Reference: Tsujimori, Tatsuki, Liou, Juhn G., and Coleman, Robert G., 2007, Finding of High-Grade Tectonic Blocks from the New Idria Serpentinite Body, Diablo Range, California: Petrologic Constraints on the Tectonic Evolution of a Tectonic Diapir, Geolgical Society of America Special Paperr 419, p. 67-80.
Localities: Recorded from at least 4 other localities in this region.
Libethenite
Formula: Cu2(PO4)(OH)
Locality: Llanada Copper Mine, Llanada, Panoche Valley, Diablo Range, San Benito Co., California, USA
'Limonite'
Formula: FeO(OH) · nH2O
Locality: 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
Lizardite
Formula: Mg3(Si2O5)(OH)4
Locality: New Idria District, Diablo Range, San Benito Co., California, USA
Magnesiochromite
Formula: Mg(Cr,Al,Fe)2O4
Localities: Reported from at least 11 localities in this region.
Photo: © Rob Lavinsky. Magnesiochromite from Santa Rita deposit, Santa Rita Peak, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Magnesioferrite
Formula: MgFe3+2O4
Locality: Unnamed Ti-Fe occurrence, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Magnesite
Formula: MgCO3
Localities: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Sampson Magnesite Mine (Sampson claims; Sampson Magnesite claims; Maltby No. 3 Mine), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Bonanza Quicksilver Mine (Bonanza Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Standard group (Jerome claim), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Magnesite var: Ferroan Magnesite
Formula: (Mg,Fe)CO3
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Magnetite
Formula: Fe2+Fe3+2O4
Localities: Reported from at least 9 localities in this region.
Photo: © 2008 Brandy Naugle. Magnetite from Clear Creek deposits, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Malachite
Formula: Cu2(CO3)(OH)2
Locality: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Marcasite
Formula: FeS2
Locality: Molina Mine (Molino Mine), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Melanophlogite
Formula: 46SiO2 · 6(N2,CO2) · 2(CH4,N2)
Localities: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Vaughn Mine, Diablo Range, San Benito Co., California, USA
Melanterite
Formula: FeSO4 · 7H2O
Localities: Yellow Jacket Mine, Stayton District (McLeod District; Panoche District), Hollister, Diablo Range, San Benito Co., California, USA
New Idria Mine (New Idria group; New Hope vein), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Mercury
Formula: Hg
Localities: Reported from at least 9 localities in this region.
Photo: © John Sobolewski. Mercury from New Idria Mine, Idria, New Idria District, Diablo Range, San Benito Co., California, USA
Metacinnabar
Formula: HgS
Localities: Reported from at least 11 localities in this region.
Metacinnabar var: Onofrite
Formula: Hg(S,Se)
Locality: New Idria Mine (New Idria group; New Hope vein), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Millerite
Formula: NiS
Localities: New Idria Mine (New Idria group; New Hope vein), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © 2011, JGW. Millerite from Clear Creek claim, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Localities: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
Montroydite
Formula: HgO
Localities: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © Maurice de Graaf. Montroydite from Clear Creek claim, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Mosesite
Formula: (Hg2N)(Cl,SO4,MoO4) · H2O
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Mountkeithite
Formula: [(Mg1-xFe3+x)(OH)2][SO4]x/2 · nH2O
Locality: Clear Creek Canyon, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © crocoite.com. Mountkeithite from Clear Creek Canyon, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Locality: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Muscovite var: Phengite
Reference: Tsujimori, Tatsuki, Liou, Juhn G., and Coleman, Robert G., 2007, Finding of High-Grade Tectonic Blocks from the New Idria Serpentinite Body, Diablo Range, California: Petrologic Constraints on the Tectonic Evolution of a Tectonic Diapir, Geolgical Society of America Special Paperr 419, p. 67-80.
Natrolite
Formula: Na2Al2Si3O10 · 2H2O
Localities: Reported from at least 7 localities in this region.
Photo: © . Natrolite from California State Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Népouite
Formula: (Ni,Mg)3(Si2O5)(OH)4
Locality: Aurora Mine, Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Neptunite
Formula: Na2KLi(Fe2+,Mn2+)2Ti2(Si8O24)
Localities: Reported from at least 6 localities in this region.
Photo: © Rob Lavinsky. Neptunite from California State Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Nesquehonite
Formula: MgCO3 · 3H2O
Locality: Florence Mac Mine (Florence Mack Mine) area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Nimite
Formula: (Ni,Mg,Al)6((Si,Al)4O10)(OH)8
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Nissonite (TL)
Formula: Cu2Mg2(PO4)2(OH)2 · 5H2O
Type Locality: Llanada Copper Mine, Llanada, Panoche Valley, Diablo Range, San Benito Co., California, USA
Reference: Mrose, M.E., Meyrowitz, R., Alfors, J.T., and Chesterman, C.W. (1967) Nissonite. American Mineralogist: 52: 927; Hey, CIM: 498.
Photo: © Brent Thorne. Nissonite from Llanada Copper Mine, Llanada, Panoche Valley, Diablo Range, San Benito Co., California, USA
Omphacite
Formula: (Ca,Na)(Mg,Al)Si2O6
Localities: Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Panoche Valley, Diablo Range, San Benito Co., California, USA
Opal
Formula: SiO2 · nH2O
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Opal var: Diatomite
Locality: Reported Diatomite deposit (1), Diablo Range, San Benito Co., California, USA
Orthoclase
Formula: KAlSi3O8
Localities: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Unnamed Garnet occurrence, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Orthojoaquinite-(Ce) (TL)
Formula: NaBa2Ce2FeTi2[Si4O12]2O2(O,OH) · 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: Unknown
Colour: Unknown
Reference: American Mineralogist (1982): 67: 809-816.
Localities: Recorded from at least 1 other locality in this region.
Pecoraite
Formula: Ni3(Si2O5)(OH)4
Localities: New Idria Mine (New Idria group; New Hope vein), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Pectolite
Formula: NaCa2(HSi3O9)
Localities: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Rozzum Ridge Cr occurrence, Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Dallas Gem Mine West trail, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Clear Creek deposits, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Perovskite
Formula: CaTiO3
Localities: 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
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
Chlorite Schist Knob area, South of the Dallas Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © SMS 2008. Perovskite from Perovskite Peak, Santa Rita Peak, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Peterbaylissite (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: ROBERT, A.C., ERCIT, T.S., GROAT, L.A., CRIDDLE, A.J., ERD, R.C. & WILLIAMS, R.S. (1995) Peterbaylissite, Hg1+3(CO3)(OH)2H2O, a new mineral species from Clear Creek claim, San Benito County, California. Canadian Mineralogist 33, 47-53.
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Locality: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Pseudomalachite
Formula: Cu5(PO4)2(OH)4
Localities: 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
Chlorite Schist Knob area, South of the Dallas Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
'Psilomelane'
Localities: Chambers property, Diablo Range, San Benito Co., California, USA
McCreary Ranch, Llanada, Diablo Range, San Benito Co., California, USA
Lewis Ranch, Diablo Range, San Benito Co., California, USA
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
Fries Ranch Mine (Rancho Queen Sabe), Fries Ranch, Antimony Peak, Stayton District (McLeod District; Panoche District), Hollister, Diablo Range, San Benito Co., California, USA
'Pumpellyite'
Localities: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Pumpellyite-(Fe2+)
Formula: Ca2Fe2+Al2(Si2O7)(SiO4)(OH)2 · H2O
Reference: Tsujimori, Tatsuki, Liou, Juhn G., and Coleman, Robert G., 2007, Finding of High-Grade Tectonic Blocks from the New Idria Serpentinite Body, Diablo Range, California: Petrologic Constraints on the Tectonic Evolution of a Tectonic Diapir, Geolgical Society of America Special Paperr 419, p. 67-80.
Pyrite
Formula: FeS2
Localities: Reported from at least 6 localities in this region.
Pyroaurite
Formula: Mg6Fe3+2(OH)16[CO3] · 4H2O
Locality: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Pyrolusite
Formula: MnO2
Locality: Hendricks Mine (Cleveland Mine), Diablo Range, San Benito Co., California, USA
Pyrrhotite
Formula: Fe1-xS (x = 0 to 0.17)
Locality: Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
Quartz
Formula: SiO2
Reference: Tsujimori, Tatsuki, Liou, Juhn G., and Coleman, Robert G., 2007, Finding of High-Grade Tectonic Blocks from the New Idria Serpentinite Body, Diablo Range, California: Petrologic Constraints on the Tectonic Evolution of a Tectonic Diapir, Geolgical Society of America Special Paperr 419, p. 67-80.
Localities: Recorded from at least 13 other localities in this region.
Quartz var: Amethyst
Formula: SiO2
Locality: San Carlos Mine, Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Quartz var: Chalcedony
Localities: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
El Cajon Mine (Gough Mine; Mathews Mine), Diablo Range, San Benito Co., California, USA
Phipps Mine, Emmett, 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
Photo: © Roberto Bosi. Chalcedony from Picacho Mine, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Quartz var: Jasper
Locality: Hendricks Mine (Cleveland Mine), Diablo Range, San Benito Co., California, USA
Reevesite
Formula: Ni6Fe3+2(OH)16(CO3) · 4H2O
Localities: Clear Creek deposits, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Unnamed Ni prospect (1), Clear Creek Canyon, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © Arliguie M. Reevesite from Clear Creek deposits, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Rhodochrosite
Formula: MnCO3
Locality: Hendricks Mine (Cleveland Mine), Diablo Range, San Benito Co., California, USA
Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Locality: Panoche Pass, Diablo Range, San Benito Co., California, USA
Rozenite
Formula: FeSO4 · 4H2O
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Rutile
Formula: TiO2
Reference: Tsujimori, Tatsuki, Liou, Juhn G., and Coleman, Robert G., 2007, Finding of High-Grade Tectonic Blocks from the New Idria Serpentinite Body, Diablo Range, California: Petrologic Constraints on the Tectonic Evolution of a Tectonic Diapir, Geolgical Society of America Special Paperr 419, p. 67-80.
Localities: Recorded from at least 3 other localities in this region.
Schorlomite
Formula: Ca3(Ti,Fe3+)2((Si,Fe3+)O4)3
Locality: 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
Schuetteite
Formula: Hg2+3(SO4)O2
Localities: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Breen claim (Don Juan; Don Miguel; Nielson group; Cody; San Benito), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © Brent Thorne 2009. Schuetteite from Breen claim, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Sénarmontite
Formula: Sb2O3
Locality: Yellow Jacket Mine, Stayton District (McLeod District; Panoche District), Hollister, Diablo Range, San Benito Co., California, USA
Sepiolite
Formula: Mg4(Si6O15)(OH)2 · 6H2O
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Sérandite
Formula: Na(Mn2+,Ca)2(HSi3O9)
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
Photo: © Weinrich Minerals, Inc.. Sérandite from California State Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
'Serpentine Group'
Formula: D2[Si2O5](OH)4 + or - nH2O
Localities: Reported from at least 12 localities in this region.
Photo: © Paul J Broyles 2011. Serpentine Group from Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
'Serpentine Group var: Marmolite'
Locality: Unspecified Cr occurrence (2), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Silver
Formula: Ag
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
Spinel
Formula: MgAl2O4
Localities: Chlorite Schist Knob area, South of the Dallas Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Downstream of the Benitoite Mine, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Windy Mountain claim, East of the Dallas Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
'Stevensite'
Formula: (Ca,Na)xMg3-x(Si4O10)(OH)2
Localities: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
Stibnite
Formula: Sb2S3
Localities: Reported from at least 13 localities in this region.
Photo: © Rob Lavinsky. Stibnite from Hollister, Diablo Range, San Benito Co., California, USA
Stilpnomelane
Formula: (K,Ca,Na)(Fe2+,Mg,Al,Fe3+)8(Si,Al)12(O,OH)36 · nH2O
Localities: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Panoche Pass, Diablo Range, San Benito Co., California, USA
Lawsonite-Glaucophane occurrence, Glaucophane Ridge, Diablo Range, San Benito Co., California, USA
Strontiojoaquinite (TL)
Formula: Sr2Ba2(Na,Fe)2Ti2[Si4O12]2O2(O,OH)2 · H2O
Type Locality: Mina Numero Uno, Clear Creek, Hernandez, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Habit: Steep pseudotetragonal, bipyramidal.
Colour: Green, yellow-green, yellow-brown (uncommon)
Description: Occurs in the New Idria serpentinite body in albite-lined fractures cutting blueschist.
Reference: Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 470; www.mineralsocal.org; William S. Wise (1982) Strontiojoaquinite and bario-orthojoaquinite: two new members of the joaquinite group . American Mineralogist 67:809-816.
Localities: Recorded from at least 3 other localities in this region.
Photo: © Maurice de Graaf. Strontiojoaquinite from Junnila Mine, New Idria District, Diablo Range, San Benito Co., California, USA
Sulphur
Formula: S8
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Szymańskiite (TL)
Formula: Hg16(Ni,Mg)6(CO3)12(OH)12 · 11H2O
Type Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Reference: ROBERTS, A.C., ERCIT, T.S., ERD, R.C. & OSCARSON, R.L. (1990): Szymańskiite, Hg1+16(Ni,Mg)6(CO3)12(OH)12(H3O)1+83H2O, a new mineral species from the Clear Creek claim, San Benito Co., California. Canadian Mineralogist 28, 703-707. SZYMAŃSKI, J.T. & ROBERTS, A.C. (1990): The crystal structure of szymańskiite, a partly disordered (Hg-Hg)2+, (Ni,Mg)2+ hydronium-carbonate-hydroxide-hydrate. Canadian Mineralogist 28, 709-718.
Photo: © Knut Eldjarn. Szymańskiite from Clear Creek claim, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Talc
Formula: Mg3(Si4O10)(OH)2
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Taramellite
Formula: Ba4(Fe3+,Ti,Fe2+,Mg)4(B2Si8O27)O2Clx
Locality: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Tedhadleyite (TL)
Formula: (Hg+2)5Hg2+I2(Cl,Br)2O4
Type Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Reference: Canadian Mineralogist (2002): 40(3): 909-914.
Terlinguaite
Formula: (Hg+2)0.5Hg2+ClO
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Photo: © 2011, JGW. Terlinguaite from Clear Creek claim, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Thomsonite-Ca
Formula: NaCa2[Al5Si5O20] · 6H2O
Locality: Clear Creek deposits, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Tiemannite
Formula: HgSe
Locality: New Idria Mine (New Idria group; New Hope vein), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Titanite
Formula: CaTi(SiO4)O
Reference: Tsujimori, Tatsuki, Liou, Juhn G., and Coleman, Robert G., 2007, Finding of High-Grade Tectonic Blocks from the New Idria Serpentinite Body, Diablo Range, California: Petrologic Constraints on the Tectonic Evolution of a Tectonic Diapir, Geolgical Society of America Special Paperr 419, p. 67-80.
Localities: Recorded from at least 6 other localities in this region.
Photo: © The-Vug.com. Titanite from MT Jeanne's pit No. 2, Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Titantaramellite
Formula: Ba4(Ti,Fe3+,Fe2+,Mg)4(B2Si8O27)O2Clx
Locality: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Todorokite
Formula: (Ca,K,Na,Mg,Ba,Mn)(Mn,Mg,Al)6O12 · 3H2O
Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Tsujimori, Tatsuki, Liou, Juhn G., and Coleman, Robert G., 2007, Finding of High-Grade Tectonic Blocks from the New Idria Serpentinite Body, Diablo Range, California: Petrologic Constraints on the Tectonic Evolution of a Tectonic Diapir, Geolgical Society of America Special Paperr 419, p. 67-80.
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Locality: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Turquoise
Formula: Cu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
Locality: Llanada Copper Mine, Llanada, Panoche Valley, Diablo Range, San Benito Co., California, USA
'Unnamed (Ba Titanate)'
Formula: BaTi2O5
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
'Unnamed (Ba Titanate II)'
Formula: BaTi3O7
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
Uvarovite
Formula: Ca3Cr2(SiO4)3
Localities: Reported from at least 13 localities in this region.
Photo: © Rob Lavinsky. Uvarovite from Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Valentinite
Formula: Sb2O3
Localities: Yellow Jacket Mine, Stayton District (McLeod District; Panoche District), Hollister, 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
Vasilyevite (TL)
Formula: (Hg+2)10I3Br2Cl(CO3)O6
Type Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Reference: Canadian Mineralogist (2003): 41(5): 1167-1172; Lapis (2004): 29(2): 42.
Photo: © AVK. Vasilyevite from Clear Creek claim, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Vermiculite
Formula: (Mg,Fe,Al)3((Al,Si)4O10)(OH)2 · 4H2O
Locality: Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Vesuvianite
Formula: (Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Localities: 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
Rozzum Ridge Cr occurrence, Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
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
Upstream San Benito River from Dallas Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Chlorite Schist Knob area, South of the Dallas Gem Mine, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Vesuvianite var: Cerian Vesuvianite
Locality: 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: © minresco.com. Cerian Vesuvianite from Perovskite Peak, Santa Rita Peak, Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA
Vivianite
Formula: Fe2+3(PO4)2 · 8H2O
Locality: Sulphur Spring orebody, New Idria Mine (New Idria group; New Hope vein), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Volborthite
Formula: Cu3(V2O7)(OH)2 · 2H2O
Locality: Llanada Copper Mine, Llanada, Panoche Valley, Diablo Range, San Benito Co., California, USA
Voltaite
Formula: K2Fe2+5Fe3+3Al(SO4)12 · 18H2O
Locality: New Idria Mine (New Idria group; New Hope vein), Idria (New Idria), New Idria District, Diablo Range, San Benito Co., California, USA
Wattersite (TL)
Formula: (Hg+2)2Hg2+(CrO4)O2
Type Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Reference: Mineralogical Record: 36(4): 337-363.; Mineralogical Record (1993): 24: 471-475.
Photo: © 2011, JGW. Wattersite from Clear Creek claim, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Witherite
Formula: BaCO3
Locality: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
Wollastonite
Formula: CaSiO3
Locality: Victor claim (Victor Mine), Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA
'Zaratite'
Formula: Ni3(CO3)(OH)4 · 4H2O
Localities: Unspecified Cr occurrence, Hollister, Diablo Range, San Benito Co., California, USA
Unspecified Cr placer occurrence, Hollister, Diablo Range, San Benito Co., California, USA ? (more information)
Zircon
Formula: ZrSiO4
Locality: Clear Creek area, Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA


210 entries listed. 169 valid minerals. 20 type localities (valid minerals). 1 erroneous literature entry.

References

Tsujimori, Tatsuki, Liou, Juhn G., and Coleman, Robert G., 2007, Finding of High-Grade Tectonic Blocks from the New Idria Serpentinite Body, Diablo Range, California: Petrologic Constraints on the Tectonic Evolution of a Tectonic Diapir, Geolgical Society of America Special Paperr 419, p. 67-80.

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