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Fornacite

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Fornacite

Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Fornacite

Renéville Mine, Renéville, Kindanba District, Pool Department, Republic of Congo (Brazzaville)
Fornacite, etc.

Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Fornacite

Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Fornacite

Renéville Mine, Renéville, Kindanba District, Pool Department, Republic of Congo (Brazzaville)
Fornacite, etc.

Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Fornacite

Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
Fornacite

Renéville Mine, Renéville, Kindanba District, Pool Department, Republic of Congo (Brazzaville)
Lucien Louis Fourneau
Formula:
Pb2Cu(CrO4)(AsO4)(OH)
Colour:
Deep olive-green; golden yellow in transmitted light (small grains).
Lustre:
Resinous, Waxy, Greasy
Hardness:
2 - 3
Specific Gravity:
6.27
Crystal System:
Monoclinic
Name:
Named in 1916 by Antoine François Alfred Lacroix from the Latin fornax "the furnace" in honor of geographer and French colonial governor of Middle Congo (1911-16), Lucien Louis Fourneau [February 16, 1867, Saint-Cyr-l'Ecole, Yvelines, France - August 3, 1930, Perros-Guirec, Côtes-du-Nord [now Côtes-d'Armor], France], whose name also translates to "the furnace".
Fourneau was lieutenant governor of Oubangui-Chari (1909-10) and commissioner of French Cameroons (1916-19).
Isostructural with:
Molybdofornacite, Vauquelinite
Fornacite-Vauquelinite Series. The arsenate analogue of vauquelinite.

Related to the Brackebuschite Group.


Classification of Fornacite

IMA status:
Approved, 'Grandfathered' (first described prior to 1959)
Strunz 8th ed.:
6/F.02-20
Nickel-Strunz 10th (pending) ed.:
7.FC.10

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
F : Chromates
C : With PO4, AsO4, SiO4
Dana 8th ed.:
43.4.3.2

43 : COMPOUND PHOSPHATES, ETC.
4 : Anhydrous Compound Phosphates, etc·, Containing Hydroxyl or Halogen
Hey's CIM Ref.:
22.5.4

22 : Phosphates, Arsenates or Vanadates with other Anions
5 : Phosphates, arsenates or vanadates with chromate, molybdate, niobate or tantalate

Physical Properties of Fornacite

Lustre:
Resinous, Waxy, Greasy
Transparency:
Transparent
Colour:
Deep olive-green; golden yellow in transmitted light (small grains).
Streak:
Olive green
Hardness:
2 - 3 on Mohs scale
Tenacity:
Brittle
Fracture:
Irregular/Uneven, Conchoidal, Sub-Conchoidal
Density:
6.27 g/cm3 (Measured)    6.30 g/cm3 (Calculated)

Optical Data of Fornacite

Type:
Biaxial (+)
RI values:
nα = 2.142 nγ = 2.242
Birefringence:
0.100
Max Birefringence:
δ = 0.100
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
Strong
Pleochroism:
Non-pleochroic
Comments:
2V rather large.

Chemical Properties of Fornacite

Formula:
Pb2Cu(CrO4)(AsO4)(OH)
IMA Formula:
CuPb2(CrO4)(AsO4)(OH)
Elements listed:
As, Cr, Cu, H, O, Pb - search for minerals with similar chemistry

Crystallography of Fornacite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P1 21/c 1
Cell Parameters:
a = 8.101(2) Å, b = 5.893(11) Å, c = 17.547(9) Å
β = 110.00(4)°
Ratio:
a:b:c = 1.375 : 1 : 2.978
Unit Cell V:
787.16 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Short bladed crystals in divergent groupings.
Comment:
Other cell given: 7.91, 5.91, 17.46 A, xxx°.

X-Ray Powder Diffraction

Powder Diffraction Data:
d-spacingIntensity
8.22 (50)
4.80 (90)
3.31 (100)
2.98 (100)
2.88 (100)
2.80 (100)
2.71 (90)

Type Occurrence of Fornacite

Type Locality:
ⓘ Renéville Mine (Djoué Mines), Renéville, Kindanba District, Pool Department, Republic of Congo (Brazzaville)
General Appearance of Type Material:
Confused groups of small, prismatic crystals.
Associated Minerals at Type Locality:
Dioptase

Synonyms of Fornacite

Furnacite

Other Language Names for Fornacite

Dutch:Fornaciet
Italian:Fornacite

Relationship of Fornacite to other Species

Forms a series with:
VauqueliniteFornacite-Vauquelinite Series

Common Associates

ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
DioptaseCuSiO3 · H2O
FluoriteCaF2
HemimorphiteZn4Si2O7(OH)2 · H2O
MimetitePb5(AsO4)3Cl
WulfenitePb(MoO4)
Associated Minerals Based on Photo Data:
Wulfenite31 photos of Fornacite associated with Wulfenite on mindat.org.
Mimetite23 photos of Fornacite associated with Mimetite on mindat.org.
Chrysocolla20 photos of Fornacite associated with Chrysocolla on mindat.org.
Quartz16 photos of Fornacite associated with Quartz on mindat.org.
Dioptase13 photos of Fornacite associated with Dioptase on mindat.org.
Fluorite8 photos of Fornacite associated with Fluorite on mindat.org.
Creaseyite7 photos of Fornacite associated with Creaseyite on mindat.org.
Cerussite6 photos of Fornacite associated with Cerussite on mindat.org.
Rosasite5 photos of Fornacite associated with Rosasite on mindat.org.
Calcite4 photos of Fornacite associated with Calcite on mindat.org.

Related Minerals - Nickel-Strunz Grouping

7.FC.05VauquelinitePb2Cu(CrO4)(PO4)(OH)
7.FC.10MolybdofornacitePb2Cu(MoO4,CrO4)(AsO4,PO4)(OH)
7.FC.15HemihedritePb10Zn(CrO4)6(SiO4)2(OH)2
7.FC.15IranitePb10Cu(CrO4)6(SiO4)2(OH)2
7.FC.20CassedanneitePb5(CrO4)2(VO4)2 · H2O
7.FC.20EmbreyitePb5(CrO4)2(PO4)2 · H2O

Related Minerals - Hey's Chemical Index of Minerals Grouping

22.5.1VauquelinitePb2Cu(CrO4)(PO4)(OH)
22.5.2EmbreyitePb5(CrO4)2(PO4)2 · H2O
22.5.3CassedanneitePb5(CrO4)2(VO4)2 · H2O
22.5.5MolybdofornacitePb2Cu(MoO4,CrO4)(AsO4,PO4)(OH)
22.5.6Mendozavilite-NaFe[Na2(H2O)15Fe3+(H2O)6][Mo8P2Fe3+3O35(OH)2]
22.5.7ParamendozaviliteNaAl4Fe7(PO4)5(PMo12O40)(OH)16 · 56H2O
22.5.8Betpakdalite-CaCa[Ca2(H2O)17Ca(H2O)6][Mo6+8As5+2Fe3+3O36(OH)]
22.5.9Betpakdalite-NaCa[Na2(H2O)17Ca(H2O)6][Mo6+8As5+2Fe3+3O34(OH)3]
22.5.10Obradovicite-KCu[K2(H2O)17Cu(H2O)6][Mo8As2Fe3+3O34(OH)3]
22.5.11Melkovite[Ca2(H2O)15Ca(H2O)6][Mo8P2Fe3+3O36(OH)]
22.5.12RankachiteCa0.5(V4+,V5+)(W6+,Fe3+)2O8(OH) · 2H2O
22.5.13OlmsteaditeKFe2+2(Nb5+,Ta5+)(PO4)2O2 · 2H2O
22.5.14JohnwalkiteK(Mn2+,Fe2+,Fe3+)2(Nb5+,Ta5+)(PO4)2O2 · 2(H2O,OH)

Related Minerals - Dana Grouping (8th Ed.)

43.4.3.1VauquelinitePb2Cu(CrO4)(PO4)(OH)
43.4.3.3MolybdofornacitePb2Cu(MoO4,CrO4)(AsO4,PO4)(OH)
43.4.3.4UM1994-19-PO:CuHMoPbPb2Cu(PO4)(MoO4,AsO4,CrO4,GaO4)(OH)

Fluorescence of Fornacite

In UV light:
Not Fluorescent in UV.

Other Information

Notes:
Totally soluble in HCl.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Fornacite

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Lacroix (1915) Bulletin de la Société française de Minéralogie: 38: 198.
Lacroix (1916) Bulletin de la Société française de Minéralogie: 39: 84.
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.: 652.
Bariand, P. and Herpin, P. (1962): Nouvelles données sur la fornacite (chromo-arseniate de plomb et de cuivre). Bull. Soc. Franc. Minéral., 85, 309-311. (in French).
American Mineralogist: 49: 447.
Zeitschrift für Kristallographie: 124: 385-397.

Internet Links for Fornacite

mindat.org URL:
https://www.mindat.org/min-1583.html
Please feel free to link to this page.
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Handbook of Mineralogy page PDF
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    • Localities for Fornacite

    This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • New South Wales
      • Yancowinna Co.
        • Broken Hill
          • Broken Hill South Mine (BHS Mine; South Mine)
    		Australian Min. 3:1 (1997)
    • Western Australia
      • Leonora Shire
        • Ten Mile Outcamp
    		Nickel, E.H. (1982) Secondary minerals from the oxidized zone of the Teutonic Bore sulphide deposit. The Australian Mineralogist, No. 40, December 1982, pg. 219-223.
      • Roebourne Shire
        • Whim Creek
    		Frost, R. L. (2004). Raman microscopy of selected chromate minerals. Journal of Raman Spectroscopy, 35(2), 153-158.; Nickel, E. H., & Hitchen, G. J. (1994). The phosphate analog of molybdofornacite from Whim Creek, Western Australia. Mineralogical Record, 25(3), 203.
    Chile
     
    • Antofagasta Region
      • Tocopilla Province
        • Tocopilla District
    		samples analysed by Gerhard Mohn and Joy Desor
    • Atacama Region
      • Copiapó Province
        • Cachiyuyo de Llampos district
    		Maurizio Dini & Robert Jenkins collections; material analysed by Mr. Jenkins
    Germany
     
    • Hesse
      • Odenwald
        • Lautertal (Odenwald)
          • Reichenbach
            • Hohenstein
    		Lapis, 12 (10), 23-32+58.
      • Spessart
        • Freigericht
          • Altenmittlau
    • Saxony
      • Glauchau
        • Callenberg
    		Lapis, 16 (9), 13-26.
    Greece
     
    • Attikí Prefecture (Attica; Attika)
      • Lavrion District (Laurion; Laurium)
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamariza)
            • Kamariza Mines (Kamareza Mines)
              • Hilarion area
    		Fritz Schrieber
          • Sounion Area
            • Agia Varvara Mines (St Barbara Mines)
    		Schnorrer, G. & Breitenbach, H. (1996): Lavrion: Neufunde aus dem antiken Bergbau und in historischen Schlacken. Lapis, 21 (1), 45-48; 62.; Lapis, 24, 7/8, (1999)
    Hanke, H. (1998): Laurion - ein Rückblick auf die Funde der letzten drei Jahre. Mineralien-Welt, 9 (2), 37-45.
    Wendel, W. & Markl, G. (1996): Eine Antimonit-Paragenese und weitere Neufunde aus Lavrion. Lapis, 21 (11), 40-42; 62.; Branko Rieck Collection
    Lapis, 24, 7/8 (1999)
    Hungary
     
    • Fejér Co.
      • Szár Hill
        • Szabadbattyán
    		Szakáll: Minerals of Szár Hill, 2004; Sánoor Szakáll, Mária Foldvári, Gábor Papp, Péter Kovács-pálffy, Árpád Kovács (1997) Secondary Sulphate Minerals From Hungary. Acta Mineralogica-petrographica, Szeged, Xxxviii, Supplementum, 7-63.
    Iran
     
    • Esfahan Province (Isfahan Province; Aspadana Province)
      • Nain County (Nayin County)
        • Anarak District
    		Bariand, P. 1963. Contribution à la minéralogie de l’lran. Bulletin de la Société Française de minéralogie et de cristallographie, 86: 17-64. [Locality description in brief and mineralogical list with photographs] Bariand, P. 2003. Un apercu général sur la Minéralogie de I'Iran. Le Règne Minéral, 54: 41-51.
    P. Bariand and P. Herpin, Bull. Soc. Franç. Minér. Crist. , 1963, LXXXVI, pp. 133-135.
    • Yazd Province
      • Nayband (Neyband)
    		Bariand, P. & Poullen, J.F. (1980): Rare Chromates from Seh-Changi, Iran. Mineralogical Record 11, 293-297
    Italy
     
    • Piedmont
      • Torino Province
        • Canavese District
          • Chiusella Valley
            • Traversella
    		SEM/EDS 18/09/2001 MNHN-Paris
    • Tuscany
      • Livorno Province
        • Campigliese (Campiglia Mountains; Campiglia Ridge)
          • Campiglia Marittima
    		Dini A., Senesi F. (2013): I giacimenti di Sn-W-As. Monte Valerio, Pozzatello, Santa Caterina, Botro ai Marmi e Campo alle Buche. Riv. Mineral. Ital., 37, 1 (1-2013), 84-92.
    Mexico
     
    • Sonora
      • Mun. de Moctezuma
        • Moctezuma
    		Lapis 2001(1), 11-40
    Morocco
     
    • Drâa-Tafilalet Region
      • Ouarzazate Province
        • Tazenakht
          • Bou Azer District (Bou Azzer District)
            • Oumlil
    		Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
    Namibia
     
    • Erongo Region
      • Swakopmund District
        • Namib-Naukluft National Park
    		Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern, 338 pp. (in English)
    • Otjikoto Region (Oshikoto)
      • Tsumeb
    		Min. Record (in press)
    Republic of Congo (Brazzaville)
    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: 652.
    • Pool Department
      • Kindanba District
        • Renéville
    		Lacroix (1915) Bulletin de la Société française de Minéralogie: 38: 198.
    Russia
     
    • Urals Region
      • Middle Urals
        • Sverdlovskaya Oblast'
          • Ekaterinburg (Sverdlovsk)
            • Berezovskii (Berezovskii Zavod)
    		Клейменов Д.А., Ерохин Ю. В., Прибавкин С.В. Форнасит из зоны окисления Березовского золоторудного месторождения. // Уральская летняя минералогическая школа-97, 1997, с.96-98.; Pavel M. Kartashov analytical data (2011)
                • Uspenskaya Mt
    		Pavel M. Kartashov analytical data (2012)
    South Africa
     
    • Mpumalanga Province
      • Nkangala District
        • Delmas
    		Minerals of South Africa
    • North West Province
      • Bojanala Platinum District
        • Western Bushveld Complex
          • Rustenburg (Rustenburg District)
            • Olifantspoort Farm
    		Reeks, G. (2007) Olifantspoort Mine, Olifantspoort, Northern Province. South African Micromount Society newsletter: 33(3)
    UK
     
    • England
      • Somerset
        • Cranmore
    		Turner, R.W. and Rumsey, M.S. (2010): Mineral Relationships in the Mendip Hills. Journal of the Russell Society, vol 13, pp 3-46; Turner, R. (2006): A mechanism for the formation of the mineralized Mn deposits at Merehead Quarry, Cranmore, Somerset, England. Mineralogical Magazine 70, 629-653; Turner R.W. and Rumsey, M.S. (2007) Merehead Mineralogy - an Update. Russell Soc Newsletter, No 50, pp 17-18 (March 2007); UK Journal of Mines and Minerals (2006), no. 27, pp 6-7.
    USA
     
    • Arizona
      • Cochise Co.
        • Johnny Lyon Hills
          • Tres Alamos Wash
    		Robert Jenkins Raman Spectroscopy
        • Little Dragoon Mts
          • Cochise District
            • Dragoon
    		Rolf Luetcke
        • Mule Mts
          • Warren District
            • Bisbee
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 225; Graeme, R. (1981), Famous mineral localities: Bisbee, AZ, Min.Rec.: 12: 256-319.
        • Tombstone Hills
          • Tombstone District
    		Rob Bowell, lab tested
      • Gila Co.
        • Dripping Spring Mts
          • Banner District
            • Hayden area
              • Chilito
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 225.
        • Payson District (Green Valley District)
          • Oxbow Estates area
            • Lousy Gulch
    		Williams, S. A. (1981): Duhamelite, Cu4Pb2Bi(VO4)4(OH)3.8H2O, a new Arizona mineral. Mineralogical Magazine 44, 151-152.
      • La Paz Co.
        • Granite Wash Mts
          • Ellsworth District
    		Mineral collected by Jerry A. Baird
        • New Water Mts
    		Hunt, W. (1983) Calciovolborthite from the New Water Mountains Yuma County, Arizona. Mineralogical Record 14:119
            • Moore Mine group
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 225.
        • Trigo Mts
          • Silver District
    		XRD analysis by Dr. Anthony Kampf.
      • Maricopa Co.
        • Big Horn Mts
          • Osborn District
            • Hummingbird Spring
    		Rolf Luetcke
            • Tonopah
              • Belmont Mountain
                • Tiger Wash
    		Bob Meyer (2012) Micro Mineral Collector. Friends of Mineralogy National Newsletter 42:10-13; Mineral News (2002) 18-1 pp1,5-7
    Yang, H., Downs, R.T., Evans, S.H., Jenkins, R.A., Bloch, E.M. (2013): Rongibbsite, Pb2(Si4Al)O11(OH), a new zeolitic aluminosilicate mineral with an interrupted framework from Maricopa County, Arizona, U.S.A. American Mineralogist, 98, 236-241
        • Painted Rock Mts
          • Painted Rock District
            • Theba
    		EDS analysis Association Jean WYART, Paris - specimen Georges FAVREAU
      • Pima Co.
        • Ajo District
          • Little Ajo Mts
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 225.
        • Empire Mts
          • Empire District
            • Hilton (Lead Mountain)
              • Copper Camp
                • Hilton Mines (Hilton Mine group; Hiltano group; Hiltano & State of Maine group)
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 225.
        • Tucson Mts
          • Amole District
            • Jaynes
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 225.
            • Saguaro National Monument
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 225; Bideaux, R.A., et al (1960), Some new occurrences of minerals of AZ, AZ Geol. Soc. Digest: 3: 53-56; Jones, D. (1983), The Old Yuma mine, Min.Rec.: 14: 95-107.
      • Pinal Co.
        • Mammoth District
          • Mammoth
            • Tucson Wash
    		Rolf Luetcke
          • Tiger
            • St. Anthony deposit
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 225; Bideaux, R.A., et al (1960), Some new occurrences of minerals of Arizona, AZ Geol. Soc. Digest: 3: 53-56; Bideaux, R.A. (1980), Tiger, AZ, Min.Rec.: 11: 155-181;
        • Tohono O'odham Indian Reservation
          • Silver Reef District
            • Tat Momoli Mts
              • Chuichu area
                • Silver Reef Mountains area
                  • White Horse Pass area
    		Collected by and in the collection of Brent Thorne
          • Slate Mts
            • Casa Grande District
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 225, 370.
          • Vekol Mts
            • Vekol District
              • Kohatk
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 225.
    R. D. Green
      • Yavapai Co.
        • Black Rock District
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 225.
        • Bradshaw Mts (Bradshaw Range)
          • Castle Creek District
            • Copperopolis
    		Handbook of Mineralogy
    • California
      • Inyo Co.
        • Inyo Mts (Inyo Range)
          • Malpais Mesa
    		Steve Stuart.
          • Russ District
            • Reward
    		Raman ID 12-13-2007 on material personally collected by Tom Trebisky.; Adams, Paul (2010) The Brown Monster and Reward Mines Inyo County, California. Mineralogical Record 41:175-193.; Adams, Paul (2010) The Brown Monster and Reward Mines Inyo County, California. Mineralogical Record 41:175-193.
        • Panamint Mts (Panamint Range)
          • Cottonwood Mts
            • Ubehebe District
              • Big Dodd Spring
    		[MinRec 32:393]
      • San Bernardino Co.
        • Silver Lake District
          • Soda Mts
            • Baker
              • Otto Mountain
    		Joe Marty specimens
    Collected by and in the collection of Brent Thorne.
    Housley R., pers.comm., May 2017
            • Zzyzx (Fort Soda; Soda; Soda Springs; Zzyzx Mineral Spring Resort)
    		The Blue Bell Claims San Bernardino County, California, Maynard, M., et al., pg. 44
    • Idaho
      • Clark Co.
        • Skull Canyon District
          • Kaufman
    		Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
    • Montana
      • Beaverhead Co.
        • Argenta District
          • Argenta
            • Stapleton Gulch
    		http://www.mineralnews.com/MinNews/MN18-2.html
    • Nevada
      • Clark Co.
        • Alunite District
    		Richard W. Thomssen; Robert M. Housley (2005) Recent rare mineral finds in southern California and Nevada desert mines. Abstracts from the 2005 Desert Symposium. California State University, Desert Studies Consortium and LSA Associates, Inc.
        • Eldorado Mts
          • Eldorado District (Colorado District)
    		NBMG Spec. Pub. 31 Minerals of Nevada
    Rolf Luetcke
    Collected by Joe Marty.
        • Spring Mts
          • Goodsprings District
    		NBMG Spec. Pub. 31 Minerals of Nevada
    Haynes, P. E. (2007):"Minerals of the Fredrickson Mine, Goodsprings District, Clark County, Nevada". New Mexico Geology 29(4),138.
            • Goodsprings
    		NBMG Spec. Pub. 31 Minerals of Nevada
    Collected by and in the collection of Brent Thorne.
    John Hagstrom collection, 2015
    NBMG Spec. Pub. 31 Minerals of Nevada; Rocks & Minerals 83:1 pp 65-69
    Self collected by Brent Thorne
      • Elko Co.
        • Spruce Mountain District
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Esmeralda Co.
    		NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Humboldt Co.
        • Iron Point District
          • Valmy
    		Dr. William S. Wise presentation to Northwest Micro Mineral Study Group on 1 May 2004, Update on Mineralogy of the Silver Coin Mine, Iron Point District, Edna Mountains, Humboldt Co., Nevada
      • Nye Co.
        • Toquima Range
          • Belmont District
            • Belmont
    		NBMG Spec. Pub. 31 Minerals of Nevada
    • New Mexico
      • Hidalgo Co.
        • Peloncillo Mts
          • San Simon District
            • Granite Gap
    		R&M 77:5 p298-305
    Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
        • Cooks Peak District (Cooke's Peak District)
          • Old Hadley (Graphic) Mining District
    		Walstrom 2006 New Mexico Mineral Symposium abstracts
        • Tres Hermanas Mts
    		Minerals of New Mexico 3rd ed.
      • Socorro Co.
        • North Magdalena District
    		Minerals of New Mexico 3rd ed.
          • Silver Hill area
    		Minerals of New Mexico 3rd ed.
        • Socorro Peak District
    		Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    • Utah
      • Juab Co.
        • East Tintic Mts
          • Tintic District
            • Mammoth
              • Mammoth Peak
    		Ron Layton
    Uzbekistan
     
    • Tashkent Viloyati (Toshkent)
      • Almalyk
    		Pavel M. Kartashov data
    Mineral and/or Locality  
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