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Pearceite

Big Photo

Mollie Gibson Mine (Molly Gibson Mine), Aspen, Aspen District (Roaring Fork District), Pitkin Co., Colorado, USA
© Peter Haas

Show Pearceite Photos (14)
Formula:
(Ag,Cu)
 
16
(As,Sb)
 
2
S
 
11
System:TrigonalColour:black with dark red ...
Lustre:Hardness:2½ - 3
Name:After Dr. Richard Pearce (1837-1927) chemist and metallurgist, Denver, Colorado, USA.


Pearceite-Polybasite series

Originally pearceite was thought to be an arsenic analogue of polybasite. Now it is a polytype of arsenpolybasite with half the cell edges and an eighth of the unit cell volume of arsenopolybasite. Pearceite forms a series with antimonpearceite (which is a polytype of polybasite).

The old name pearceite will be replaced by pearceite-Tac, antimonpearceite by polybasite-Tac, arsenpolybasite-221 by pearceite-T2ac, arsenpolybasite-222 by pearceite-M2a2b2c (Bindi, et al [2007]).

Classification of Pearceite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:2/E.05-20
Nickel-Strunz 10th (pending) edition ID:2.GB.15

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
B : Neso-sulfarsenites, etc. with additional S
Dana 8th edition ID:3.1.8.1

3 : SULFOSALTS
1 : ø > 4
Hey's CIM Ref.:5.2.5

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
2 : Sulpharsenites etc. of Ag
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Type Occurrence of Pearceite

Type Locality:Mollie Gibson Mine (Molly Gibson Mine), Aspen, Aspen District (Roaring Fork District), Pitkin Co., Colorado, USA
Year of Discovery:1896

Physical Properties of Pearceite

Colour:black with dark red internal reflections
Streak:black
Hardness (Mohs):2½ - 3

Crystallography of Pearceite

Crystal System:Trigonal
Class (H-M):3m (3 2/m) - Hexagonal Scalenohedral
Space Group:P3m1 (P3 2/m 1)
Cell Parameters:a = 7.3876Å, c = 11.8882Å
Ratio:a:c = 1 : 1.609
Unit Cell Volume:V 561.89 ų
Z:1
Crystal Atlas:
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Pearceite - Tabular {001}

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Optical Data of Pearceite

Type:Biaxial
RI values: nα = 2.700
Maximum Birefringence:δ = 2.700

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:relatively strong

Chemical Properties of Pearceite

Formula:
(Ag,Cu)
 
16
(As,Sb)
 
2
S
 
11
Essential elements:Ag, As, S
All elements listed in formula:Ag, As, Cu, S, Sb
Common Impurities:Zn,Fe,Sb

Relationship of Pearceite to other Species

Series:Forms a series with Polybasite (see here)
Related Minerals - Nickel-Strunz Grouping):
2.GB.05Argentotennantite
(Ag,Cu)
 
10
(Zn,Fe)
 
2
(As,Sb)
 
4
S
 
13
2.GB.05Freibergite
(Ag,Cu,Fe)
 
12
(Sb,As)
 
4
S
 
13
2.GB.05Galkhaite
(Cs,Tl)(Hg,Cu,Zn)
 
6
(As,Sb)
 
4
S
 
12
2.GB.05Giraudite
(Cu,Zn,Ag)
 
12
(As,Sb)
 
4
(Se,S)
 
13
2.GB.05Goldfieldite
Cu
 
12
(Te,Sb,As)
 
4
S
 
13
2.GB.05Hakite
(Cu,Hg,Ag)
 
12
Sb
 
4
(Se,S)
 
13
2.GB.05Tennantite
(Cu,Ag,Fe,Zn)
 
12
As
 
4
S
 
13
2.GB.05Tetrahedrite
(Cu,Fe,Ag,Zn)
 
12
Sb
 
4
S
 
13
2.GB.10Selenostephanite
Ag
 
5
Sb(Se,S)
 
4
2.GB.10Stephanite
Ag
 
5
SbS
 
4
2.GB.15Polybasite
(Ag,Cu)
 
16
(Sb,As)
 
2
S
 
11
2.GB.15Selenopolybasite
[(Ag,Cu)
 
6
(Sb,As)
 
2
(S,Se)
 
7
][Ag
 
9
Cu(S,Se)
 
2
Se
 
2
2.GB.15Cupropearceite
[Cu
 
6
As
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
2.GB.15IMA2008-004
[Cu
 
6
Sb
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
Related Minerals - Hey's Index Grouping:
5.2.1Smithite
AgAsS
 
2
5.2.2Trechmannite
AgAsS
 
2
5.2.3Proustite
Ag
 
3
AsS
 
3
5.2.4Xanthoconite
Ag
 
3
AsS
 
3
5.2.6Pearceite-T2ac
(Ag,Cu)
 
16
(As,Sb)
 
2
S
 
11
5.2.7Argentotennantite
(Ag,Cu)
 
10
(Zn,Fe)
 
2
(As,Sb)
 
4
S
 
13
5.2.8Miargyrite
AgSbS
 
2
5.2.9Pyrargyrite
Ag
 
3
SbS
 
3
5.2.10Pyrostilpnite
Ag
 
3
SbS
 
3
5.2.11Stephanite
Ag
 
5
SbS
 
4
5.2.12Polybasite
(Ag,Cu)
 
16
(Sb,As)
 
2
S
 
11
5.2.13Billingsleyite
Ag
 
7
AsS
 
6
5.2.14Polybasite-Tac
(Ag,Cu)
 
16
(Sb,As)
 
2
S
 
11
5.2.15Freibergite
(Ag,Cu,Fe)
 
12
(Sb,As)
 
4
S
 
13
5.2.16Aramayoite
Ag(Sb,Bi)S
 
2
5.2.17Matildite
AgBiS
 
2
5.2.18Schapbachite
AgBiS
 
2
5.2.19Pavonite
(Ag,Cu)(Bi,Pb)
 
3
S
 
5
5.2.20Arcubisite
Ag
 
6
CuBiS
 
4
5.2.21Bohdanowiczite
AgBiSe
 
2
5.2.22Selenostephanite
Ag
 
5
Sb(Se,S)
 
4
5.2.23Benleonardite
Ag
 
8
(Sb,As)Te
 
2
S
 
3
5.2.24Volynskite
AgBiTe
 
2

Other Names for Pearceite

German names:
Pearceit
Russian names:
Пирсеит
Spanish names:
Pearceita

Polytypes for Pearceite

Polytypes:
Pearceite-M2a2b2cPearceite-TacPolybasite-T2ac

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Pearceite

Reference List:Rose (1833), Ann. Phys.: 28: 158.

Rammelsberg (1875): 123.

Pearce and Penfield (1892), American Journal of Science: 44: 17.

Penfield (1896), American Journal of Science: 2: 17.

Gaudin and McGlashan (1938): 33: 153.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 353-355.

Rep. Tohoku University (1983): 15: 3.

Harlov, D.E. (1999): Thermochemistry of Ag-Cu exchange equilibria between proustite, sinnerite, and pearceite; constraints on Ag-Cu and As-Sb mixing in pyrargyrite-proustite. European Journal of Mineralogy, 11, 709-719.

Bindi, L., M. Evain and S. Menchetti (2006): Temperature dependence of the silver distribution in the crystal structure of natural pearceite, (Ag,Cu)16(As,Sb)2S11. Acta Crystallographica B62, 212-219.

Bindi, Luca, Michel Evain, Paul G. Spry, and Silvio Menchett (2007) The pearceite-polybasite group of minerals: Crystal chemistry and new nomenclature rules. American Mineralogist, Volume 92, pages 918-925.

Internet Links for Pearceite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Pearceite in the Natural History Museum (London) online catalogue
  • Pearceite details from Handbook of Mineralogy (PDF)
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    Localities for Pearceite

    Hide Locality List
    The 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.
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    (TL) indicates type locality. ? 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.
    Argentina
     
    • La Rioja
      • Sierra de Famatina
        • Chilecito Department
          • Cerro Negro District
    		Brodtkorb (2002): Las Especies Minerales de la Republica Argentina
    Brotkorb (2002): las Especies Minerales de la Republica Argentina
    • Salta
      • El Quevar
    		Brodtkorb (2002): Las Especies Minerales de la Republica Argentina
    Australia
     
    • New South Wales
      • Buller Co.
        • Drake
          • Red Rock
    		Bottomer L.R. Epithermal silver-gold mineralization in the Drake area, northeastern New South Wales. Australian Journal of Earth Sciences (1986) 33, 457-473
    Bottomer L.R. Epithermal silver-gold mineralization in the Drake area, northeastern New South Wales. Australian Journal of Earth Sciences (1986) 33, 457-473
      • Clive Co.
    		H.F. Henley et al. Grafton-MacLean 1:250 000 Metallogenic Map and Mineral Deposit Data sheets, 2001
      • Phillip Co.
        • Lue
    		Pringle and Elliot 1998, Australasian Institute of Mining and Metallurgy Monograph 22.
    Austria
     
    • Lower Austria
      • Türnitzer Alpen Mts
    		[MinRecord 29:184]
    • Tyrol
      • North Tyrol
        • Inn valley
          • Brixlegg - Schwaz area
            • Brixlegg - Rattenberg
              • Geyer - Silberberg District
    		Lapis 19(7/8):13-78 (1994)
    Bolivia
     
    • La Paz Department
      • Pacajes Province
        • Berenguela District
    		USGS Bulletin # 1975, p. 247.
    Bulgaria
     
    • Kardzali (Kurdzhali; Kărdžali; Kurdjali) Oblast
      • Rhodope Mts
    • Plovdiv Oblast
      • Rhodope Mts
        • Madan
          • Deveti Septemvri Complex
    Burkina Faso
     
    Econ Geol (2003) 98:1463-1485
    Canada
     
    • Ontario
      • Cochrane District
        • Hislop Township
          • Holtyre
      • Timiskaming District
        • Cobalt-Gowganda region
          • Miller Lake area
            • Nichol Township
        • Coleman Township
          • Cobalt
        • Gowganda
    Channel Islands
     
    • Sark
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Chile
     
    • Atacama Region
      • Copiapó Province
        • Pabellón
    		The Stratabound Tuff-hosted Elisa de Bordos Silver-Mercury Deposit, Northern Chile; M. Jurgeit & L. Fontbote, in Stratabound Ore Deposits in the Andes, L Fontbote, G.C. Amstutz, M. Cardozo, E. Cedillo, J. Frutos (Editors), Springer-Verlag, Berlin Heidelbe
    China
     
    • Hunan Province
      • Hengyang Prefecture
        • Changning Co.
          • Shuikoushan ore field
    		Nanshi Zeng, Eiji Izawa, Yoshinobu Motomura, and Lairen Lai (2000): The Canadian Mineralogist 38, 11-22.
    • Inner Mongolia Autonomous Region
      • Hulunbuir (Hulunbei'er) League
        • Xin Barag Right Banner
          • Altan Emel
    		Dong Zhensheng et al. (1996). In: Tu Guangzhi, Ed.: Low Temperature Geochemistry, Science Press (Beijing), 32-42.
    • Jilin Province (Manchuria; Dongbei Region)
      • Jilin Prefecture
        • Huadian Co.
          • Jiapigou ore field
    		Laicheng Miao, Yumin Qiu, Weiming Fan, Fuqin Zhang, and Mingguo Zhai (2005): Ore Geology Reviews 26. 137-165.
      • Siping Prefecture
        • Lishu Co.
    		Dong Zhensheng et al. (1996). In: Tu Guangzhi, Ed.: Low Temperature Geochemistry, Science Press (Beijing), 32-42.
    • Sichuan Province
      • Garzê (Ganzi) Autonomous Prefecture
        • Baiyu Co.
    		Chaoyang Li, Tiegeng Liu, Lin Ye, Weiguang Zhu, and Hailin Deng (2003): Science in China, Series D (Earth Sciences), 46, Supplement 1, 84-98.
    • Yunnan Province
      • Pu'er Prefecture
        • Mojiang Co.
    		Zhiping Li, and S.G. Peters (1998): USGS Open-File Report 98-466.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Příbram
          • Vrančice
    		[Lapis 1995, 12, p.13-24]
      • Karlovy Vary Region
        • Krušné Hory Mts (Erzgebirge)
          • Ostrov
    		Duda, Rejl, Slivka: "Mineralien", 1991
      • Liberec Region
    		Scharm, B.: Přehled minerálů nalezených v oblasti uranových koncentrací v severočeské křídě. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 169-172.
      • Ústí Region
        • Krušné Hory Mts (Erzgebirge)
          • Dubí
    		Sejkora, J.: Minerály ložiska Moldava v Krušných horách. Bulletin Mineralogicko-petrografického oddělení Národního muzea v Praze, 1994, roč. 2, s. 110-116.
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Javorník
          • Rýmařov
    		Fojt, B. et al.: Paragenetická charakteristika ložisek Pb-Zn rud v širším okolí Horního Města u Rýmařova. Acta Mus. Moraviae, Sci. geol., 2007, 92, 3-57.
    France
     
    • Alsace
      • Haut-Rhin
        • Doller Valley
          • Kirchberg-Wegscheid
    		Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997, p. 115
          • Sewen
            • Klosterwald
    		Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997, p. 120
        • Ste Marie-aux-Mines (Markirch)
    		Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997
    Wittern, Journée: "Mineralien finden in den Vogesen", 1997
    • Auvergne
      • Haute-Loire
        • Brioude - Massiac area
          • Brioude
            • Paulhac
    		P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989
          • Lavoûte-Chilhac
            • Ferrussac
    		P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989
        • La Chaise-Dieu
          • Saint-Pal-de-Senouire
    		P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989
    • Brittany
      • Morbihan
        • Pontivy
          • Guern
    		R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
    • Franche-Comté
      • Haute-Saône
        • Château-Lambert
    		Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997
    • Limousin
      • Corrèze
        • Ussel
    		[MinRec 1982, 5, p.261-268]
      • Haute-Vienne
        • Nantiat
          • Vaulry
    		P. Cantinolle et al. , Bull. Minéral. , 1985, 108, pp. 245-248
    • Midi-Pyrénées
      • Hautes-Pyrénées
    		 Le Règne Minéral 47: 5-21
      • Tarn
        • Réalmont
          • Peyrebrune
    		Bernadi G. (2004), Quelques nouvelles de Peyrebrune (Tarn), Le Cahier des Micromonteurs, n°86, pp 13-18
    • Provence-Alpes-Côte d'Azur
      • Alpes-Maritimes
        • Mandelieu
    		Mines et mineraux de la provence cristalline (G. MARI, 1979)
      • Var
        • Plan de la Tour
    		Dietrich J.E., Mari G., Dalia A. (1999), La wulfénite de la mine de Valaury (Plan-de-la-Tour, Var, France), Le Cahier des Micromonteurs, n°1, pp: 3-16
    • Rhône-Alpes
      • Rhône
    		French BRGM data
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Schenkenzell
          • Wittichen
            • Böckelsbach valley
    		Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
            • Burgfelsen
    		No reference listed
            • Heubach Valley
    		No reference listed
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German)
    • Hesse
      • Odenwald
        • Nieder-Ramstadt
          • Nieder-Beerbach
    		[MinRec 28:141]
    • Rhineland-Palatinate
      • Hunsrück Mts
        • Birkenfeld
          • Ellweiler
    		Aufschluss 69/(7+8), Lapis 79/(7+8)
    • Saxony
      • Erzgebirge
        • Ehrenfriedersdorf
    		Wittern: "Mineralfundorte in Deutschland", 2001
        • Oberwiesenthal
          • Niederschlag
    		Lapis, 19 (4), 13-22+50.
    Greenland
     
    • Kitaa (West Greenland) Province
      • Narsaq
    		No reference listed
    Indonesia
     
    • Java
      • West Java Province
        • Bogor District
    		http://www.antam.com/News/Publications/IMC/Minerals/IMC/sec3gld.doc
    Ireland
     
    • Co. Galway
      • Killimor
    		de Haller, series of article in Bull. Soc. Genevoise de Minéralogie in the 1980s.
    Italy
     
    • Lombardy
      • Bergamo Province
        • Seriana Valley
          • Riso Valley
    		AA. VV., 1996. Collezionare minerali. Hobby & Work.
    AA. VV., 1996. Collezionare minerali. Hobby & Work.
      • Varese Province
        • Boarezzo
    		Orlandi P. & Silvani A (1994).: Jalpaite, Pearceite ed altri minerali di argento di Boarezzo VA., Riv. Min. It., 4, 343-347. and Orlandi, P., & Campostrini, I., 2006. Boarezzo. I minerali della ricerca mineraria "Pradisci". Rivista Mineralogica Italiana, 30 (1), 14-24.
    • Sardinia
      • Carbonia-Iglesias Province
        • Iglesias
          • Punta della Torre
    		Orlandi, P. & Campostrini, I. (2005): Zibaldone. Aggiornamenti di mineralogia italiana 2004. Rivista Mineralogica Italiana, 3/2005, 184-191.
    Japan
     
    • Hokkaido Island
      • Ishikari Province
    • Honshu Island
      • Chubu Region
        • Niigata Prefecture
          • Sado Island
    		Matsubara: Mineral Species of Japan (5th ed.) (under old name "arsenpolybasite")
        • Shizuoka Prefecture
          • Toi-cho
    		Dr. Kameki Kinoshita collection (curated at Geological Survey of Japan)
      • Tohoku region
        • Akita prefecture
          • Odate
            • Hanaoka mine
    		Matsueda, H. et al (2000) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 8, #3, 129-150.
    Kazakhstan
     
    • Qostaney Oblysy (Kostanai [Kustany] Oblast')
      • Rudnyi Altai
    		[World of Stones 12:13]
    Mexico
     
    • Baja California Sur
      • Mun. de Mulegé
        • Boleó District
          • Santa Rosalía (El Boleó)
    		Panczner(1987):92-350.
    • Coahuila
      • Mun. de Sierra Mojada
        • Sierra Mojada
    		Panczner (1987); Dana 7.
    • Guanajuato
      • Mun. de Guanajuato
        • Guanajuato
    		No reference listed
        • La Luz
    		Panczner (1987): 86-358.
    • Mexico
      • Mun. de Temascaltepec
        • Temascaltepec de González (Temascaltepec)
    		Camprubi, A., Canals, A., Cardellach, E., Prol-Ledesma, R.M., Rivera, R., 2001, The La Guitarra Ag-Au low-sulfidation epithermal deposit, Temascaltepec district, Mexico: vein structure, mineralogy, and sulfide-sulfosalt chemistry. Society of Economic Geologists Special Publication, v. 8, p. 133-158.
    • Sonora
      • Mun. de Arizpe
        • Arizpe
    		Panczner(1987):83-359.
    Morocco
     
    • Anti-Atlas Mts
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Boumalne-Dadès
    		No reference listed
    Norway
     
    • Buskerud
      • Kongsberg
    		Neumann (1944, p. 67); Neumann (1985, p. 46).
    Peru
     
    • Huancavelica Department
      • Castrovirreyna Province
    		Min.Rec. 28, no.4 (1997)
    • Lima Department
      • Oyon Province
    		The Mineralogical Record, vol. 35 no.2 p.153 (under old name "arsenpolybasite")
    Romania
     
    • Alba Co.
    		http://www.gl.rhbnc.ac.uk/geode/ABCD/Apuseni.html
    Russia
     
    • Far-Eastern Region
      • Chukot Peninsula
      • Kamchatka Oblast'
    		[Der Aufschluss 1995:4 p.163-180]
    Slovakia
     
    • Banská Bystrica Region
      • Kremnica Mts
    		Ďuďa R., 1993 : Die mineralien der Gold und Silber - lagersttäte von Kremnitz ( Kremnica) in der Slowakei. Mineralien Welt /Haltern,Nemecko/,5, s. 20 - 32
      • Štiavnica Mts
        • Banská Štiavnica Mining District
    Duda, Rejl, Slivka: "Mineralien", 1991
    Spain
     
    • Catalonia
      • Tarragona
        • Conca de Barberà
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
          • Vimbodí
    USA
     
    • Alaska
      • Denali Borough
        • Denali NP and Preserve
          • Kantishna Hills District
    		USGS OFR 2004-1200(Hawley,2004)
    • Arizona
      • Cochise Co.
        • Mule Mts
          • Warren District
    		[MinRec 24:421]
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 323; Graeme, R. (1993), Bisbee revisited, Min.Rec.: 24: 421-436.
      • Mohave Co.
    		Galbraith, F.W. (1947), AZ Bur. Mines Bull. 153, Minerals of AZ: 26.
          • Wallapai District
            • Chloride District
              • Chloride
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 323; Bastin, E.S. (1925), Origin of certain rich silver ores near Chloride and Kingman, AZ, USGS Bull. 750-B: 17-39.
      • Santa Cruz Co.
        • Patagonia Mts
          • Harshaw District
            • Alum Gulch
              • Trench and Josephine Mine group (Josephine Mines; Trench group of claims; Lunch Cans prospect)
    		Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 59 (Table 4); Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 323; Schrader (1915): 253-254; Arizona Bureau of Mines file data.
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 323.
    • Colorado
      • Boulder Co.
        • Caribou District
          • Grand Island
    		Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) Eckels, E. B.
        • Nederland District
          • Sherwood Gulch
    		Minerals of Colorado (1997) E.B. Eckels
        • Ward District
    		Minerals of Colorado (1997) E.B. Eckels
      • Clear Creek Co.
        • Central City District
    		Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
        • Georgetown District
    		Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) Eckel, E. B.
    Minerals of Colorado (1997) E.B. Eckels
        • Idaho Springs District
    		USGS OFR 66-87(Moench,1966)
    Minerals of Colorado (1997) Eckels, E. B.
        • Lawson District (Dumont District)
    		Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
      • Dolores Co.
        • Lone Cone District (Dunton District)
    		Minerals of Colorado (1997) E.B. Eckels
    MinRec 16:203-216
    Minerals of Colorado (1997) E.B. Eckels
      • Eagle Co.
    		USGS PP 1017(Lovering,1978)
      • Gilpin Co.
    		Minerals of Colorado (1997) E.B. Eckels
      • Hinsdale Co.
        • Lake City District (Lake District)
          • Lake City
    		Minerals of Colorado (1997) Eckels, E. B.
      • La Plata Co.
        • La Plata District (California District)
    		Minerals of Colorado (1997) E.B. Eckels
      • Ouray Co.
        • Gold Hill District
    		The Mines and Minerals of the Great American Rift, R.W. Holmes & M.B. Kennedy, 1983
        • Ouray District (Uncompahgre District)
    		Minerals of Colorado (1997) E.B. Eckels
    Rocks & Minerals 82:368-380
        • Sneffels District (Mount Sneffels District)
          • Ouray
    		Rocks & Min.:64:142-143.
          • Sneffels
            • Revenue group
    		Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) Eckels, E. B.
      • Pitkin Co.
        • Aspen District (Roaring Fork District)
          • Aspen
    		Dana 7:I:352 & 355.
      • Saguache Co.
        • Bonanza District (Kerber Creek District)
    		Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
      • San Miguel Co.
        • Telluride District
    		Minerals of Colorado (1997) E.B. Eckels
          • Marshall Basin
            • Smuggler Union Consolidated Mine (Smuggler Mine)
    		Rocks & Minerals 75:338
      • Summit Co.
    		Minerals of Colorado (1997) E.B. Eckels
        • Kokomo-Tenmile Area
    		Minerals of Colorado (1997) E.B. Eckels
        • Montezuma Area
    		Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
          • Morgan Gulch
    		Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
          • Snake River
    		Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
    • Idaho
      • Bonner Co.
        • Lakeview District
          • Lakeview
    		Rocks & Min. 70:246
    • Montana
      • Lewis and Clark Co.
        • Marysville District
    		Dana 7:I:352,355.
      • Silver Bow Co.
        • Butte District
          • Butte
    		Rocks & Min.: 16: 246.
    • Nevada
      • Lincoln Co.
        • Cave Valley District
    		NBMG Bull 73 Geology and Mineral Resources of Lincoln County, Nevada
    NBMG Bull 73 Geology and Mineral Resources of Lincoln County, Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Mineral Co.
        • Rawhide District
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Storey Co.
    		R&M 74:6 p380-390
          • Comstock Lode
    		NBMG Spec. Pub. 31 Minerals of Nevada
    • New Mexico
      • Grant Co.
    		[Rocks & Minerals Vol 68 March/April 1993 p96]
    [Rocks & Minerals Vol 68 March/April 1993 p96]
    Minerals of New Mexico 3rd ed.
    • Utah
      • Box Elder Co.
        • Grouse Creek Mts
          • Ashbrook District
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
      • Juab Co.
        • East Tintic Mts
          • Tintic District
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
      • Utah Co.
        • East Tintic Mts
          • East Tintic District
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    • Washington
      • Chelan Co.
        • Wenatchee District
          • Wenatchee
            • Squillchuck Creek
    		Lasmanis, R. (1995): Mineral News: A Compendium of Wenatchee District Mineralogy, Chelan County, Washington, p.6-7
    • Wisconsin
      • Forest Co.
        • Little Sand Lake
    Mineral and/or Locality
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