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Glaucodot

Big Photo

Håkansboda, Lindesberg, Västmanland, Sweden
© Rob Lavinsky

Show Glaucodot Photos (10)
Formula:
(Co
 
0.50
Fe
 
0.50
)AsS
System:OrthorhombicHardness:5
Name:From the Greek γλανκός, blue, because of its use in making smalt.


Arsenopyrite Group.

See also the chemically very similar Cobaltite and Alloclasite.

Classification of Glaucodot

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:2/D.22-20
Nickel-Strunz 10th (pending) edition ID:2.EB.10c

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
B : M:S = 1:2, with Fe, Co, Ni, PGE, etc.
Dana 8th edition ID:2.12.6.1

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2
Hey's CIM Ref.:3.10.17

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
10 : Sulphides etc. of Co
mindat.org URL:http://www.mindat.org/min-1709.html
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Type Occurrence of Glaucodot

Type Locality:Huasco, Huasco Province, Atacama Region, Chile
Year of Discovery:1849

Physical Properties of Glaucodot

Hardness (Mohs):5

Crystallography of Glaucodot

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Pnma (P21/n 21/m 21/a)
Cell Parameters:a = 14.158(1) Å, b = 5.6462(4) Å, c = 3.3196(2) Å
Ratio:a:b:c = 2.508 : 1 : 0.588
Unit Cell Volume:V 265.37 ų
Z:6
Crystal Atlas:
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Glaucodot - {011}, {110}, {021}, modified
Glaucodot - {110}, {021}

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Chemical Properties of Glaucodot

Formula:
(Co
 
0.50
Fe
 
0.50
)AsS
Essential elements:As, Co, S
All elements listed in formula:As, Co, Fe, S
Common Impurities:Ni

Relationship of Glaucodot to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.EB.05aAurostibite
AuSb
 
2
2.EB.05bBambollaite
Cu(Se,Te)
 
2
2.EB.05aCattierite
CoS
 
2
2.EB.05aErlichmanite
OsS
 
2
2.EB.05aFukuchilite
Cu
 
3
FeS
 
8
2.EB.05aGeversite
PtSb
 
2
2.EB.05aHauerite
MnS
 
2
2.EB.05aInsizwaite
Pt(Bi,Sb)
 
2
2.EB.05aKrut'aite
CuSe
 
2
2.EB.05aLaurite
RuS
 
2
2.EB.05aPenroseite
(Ni,Co,Cu)Se
 
2
2.EB.05aPyrite
FeS
 
2
2.EB.05aSperrylite
PtAs
 
2
2.EB.05aTrogtalite
CoSe
 
2
2.EB.05aVaesite
NiS
 
2
2.EB.05aVillamanínite
(Cu,Ni,Co,Fe)S
 
2
2.EB.05aDzharkenite
FeSe
 
2
2.EB.05aGaotaiite
Ir
 
3
Te
 
8
2.EB.10bAlloclasite
(Co
 
0.65
Fe
 
0.35
)AsS - CoAsS
2.EB.10dCostibite
CoSbS
2.EB.10aFerroselite
FeSe
 
2
2.EB.10aFrohbergite
FeTe
 
2
2.EB.10aKullerudite
NiSe
 
2
2.EB.10aMarcasite
FeS
 
2
2.EB.10aMattagamite
CoTe
 
2
2.EB.10eParacostibite
CoSbS
2.EB.10ePararammelsbergite
NiAs
 
2
2.EB.10fOenite
CoSbAs
2.EB.15aAnduoite
(Ru,Os)As
 
2
2.EB.15aClinosafflorite
(Co,Fe,Ni)As
 
2
2.EB.15aLöllingite
FeAs
 
2
2.EB.15aNisbite
NiSb
 
2
2.EB.15aOmeiite
(Os,Ru)As
 
2
2.EB.15cPaxite
CuAs
 
2
2.EB.15aRammelsbergite
NiAs
 
2
2.EB.15aSafflorite
(Co,Fe,Ni)As
 
2
2.EB.15bSeinäjokite
(Fe,Ni)(Sb,As)
 
2
2.EB.20Arsenopyrite
FeAsS - (Fe
 
0.90
Co
 
0.10
)AsS
2.EB.20Gudmundite
FeSbS
2.EB.20Osarsite
(Os,Ru)AsS
2.EB.20Ruarsite
(Ru,Os)AsS
2.EB.25Cobaltite
CoAsS
2.EB.25Gersdorffite
NiAsS
2.EB.25Hollingworthite
(Rh,Pt,Pd)AsS
2.EB.25Irarsite
(Ir,Ru,Rh,Pt)AsS
2.EB.25Jolliffeite
NiAsSe
2.EB.25Krutovite
NiAs
 
2
2.EB.25Maslovite
PtBiTe
2.EB.25Michenerite
PdBiTe
2.EB.25Padmaite
PdBiSe
2.EB.25Platarsite
(Pt,Rh,Ru)AsS
2.EB.25Testibiopalladite
PdTe(Sb,Te)
2.EB.25Tolovkite
IrSbS
2.EB.25Ullmannite
NiSbS
2.EB.25Willyamite
(Co,Ni)SbS
2.EB.25Changchengite
IrBiS
2.EB.25Mayingite
IrBiTe
2.EB.25Hollingsworthite
2.EB.25Kalungaite
PdAsSe
2.EB.25Milotaite
PdSbSe
2.EB.30Urvantsevite
Pd(Bi,Pb)
 
2
2.EB.35Rheniite
ReS
 
2
Related Minerals - Hey's Index Grouping:

- +
3.10.1Cobaltpentlandite
(Co,Ni,Fe)
 
9
S
 
8
3.10.2Linnaeite
Co
2+
 
Co
3+
2
S
 
4
3.10.3Cattierite
CoS
 
2
3.10.4Freboldite
CoSe
3.10.5Bornhardtite
Co
2+
 
Co
3+
2
Se
 
4
3.10.6Trogtalite
CoSe
 
2
3.10.7Hastite
CoSe
 
2
3.10.8Mattagamite
CoTe
 
2
3.10.9Modderite
(Co,Fe)As
3.10.10Safflorite
(Co,Fe,Ni)As
 
2
3.10.11Clinosafflorite
(Co,Fe,Ni)As
 
2
3.10.12Skutterudite
(Co,Fe,Ni)As
 
2-3
3.10.13Cobaltite
CoAsS
3.10.14Paracostibite
CoSbS
3.10.15Costibite
CoSbS
3.10.16Alloclasite
(Co
 
0.65
Fe
 
0.35
)AsS - CoAsS
3.10.18Carrollite
Cu(Co,Ni)
 
2
S
 
4

Other Names for Glaucodot

Synonyms:
GlaucodoteGlaucodotite
Other Languages:
German:Akontit
Glaucodotit
Glaukodot
Italian:Glaucodoto
Polish:Glaukodot
Spanish:Glaucodotita
Ukrainian:Глаукодот

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 Glaucodot

Reference List:Buerger (1937), American Mineralogist: 22: 48.

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: 322-325.

Zeitschrift für Kristallographie: 95: 83-113.

Yang, H. and R.t.downs (2008): Crystalstructure of glaucodot, (Co,Fe)AsS,and its relationships to marcasite and arsenopyrite

Internet Links for Glaucodot

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

    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
    		Brodtkorb (2002): Especies Minerales de la Republica Argentina
    Australia
     
    • South Australia
      • Andamooka Ranges - Lake Torrens area
        • Stuart Shelf area
          • Mt Gunson
      • Olary Province
        • Plumbago homestead
    		No reference listed
    Austria
     
    • Salzburg
      • Hohe Tauern Mts
        • Untersulzbach valley
    		Lewandowski, K., Lerch, H. & Seemann, R. (2006): Chronik - Schaubergwerk Hochfeld "Bergbau im Untersulzbachtal – Eine fast vergessene Welt" Die 500-jährige Geschichte des Kupferbergbaus am Hochfeld im Untersulzbachtal. Zukunftskollegium Nationalpark Hohe Tauern, Neukirchen a. G., 288 pp.
          • Knappenwand area
    		A. Strasser: Die Minerale Salzburgs (1989)
    • Tyrol
      • North Tyrol
        • Inn valley
          • Brixlegg - Schwaz area
            • Schwaz
              • Ulpen Cu deposit (Kaunz Alp; Keller pass; Öxel valley)
    		Lapis 19(7/8):13-78 (1994)
    Azerbaijan
     
    • Daşkəsən (Daskasan; Dashkyasan) District
      • Dashkesan
    Canada
     
    • New Brunswick
      • Charlotte Co.
        • southwest of Fredericton
    		Amer. Mineral., (1969) 54, 1202–1203.
    • Northwest Territories
      • Mackenzie District
        • Great Bear Lake
          • Port Radium
    		Kidd & Haycock (1935).
      • Mazenod Lake District
        • Diane Lake
    		www.fortuneminerals.com/articles/CIM_Paper_1999.pdf.
    • Ontario
      • Timiskaming District
        • Cobalt-Gowganda region
    		[www.ontariominerals.com]
    • Québec
      • Wolfe Co.
        • South Ham
    		No reference listed
    • Saskatchewan
      • Athabasca Basin
    		http://www.ir.gov.sk.ca/dbsearch/MinDepositQuery/Default.asp?ID=1856
    Chile
     
    • Atacama Region
      • Huasco Province
    		Ann.Phys.Chem., Poggendorff (1849) 77, 127
    China
     
    • Jiangxi Province
      • Yichun Prefecture
        • Shanggao Co.
    		Lianxing Gu, Khin Zaw, Wenxuan Hu, Kaijun Zhang, Pei Ni, Jinxiang He, Yaotong Xu, Jianjun Lu, and Chunming Li (2007): Ore Geology Reviews 31(1-4), 107-138.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Karlovy Vary Region
        • Krušné Hory Mts (Erzgebirge)
          • Ostrov
    		Lapis 2002(7/8), 63-65
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Javorník
    		Sejkora, J., Pauliš, P., Škoda, R.: Uranové ložisko Zálesí v Rychlebských horách. Minerál, 2007, roč. 15, č. 4, s. 305-238.
    Finland
     
    • Etelä-Suomen Lääni
      • Viljakkala
    		No reference listed
    France
     
    • Alsace
      • Haut-Rhin
        • Ste Marie-aux-Mines (Markirch)
    		Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997
    • Lorraine
      • Vosges
        • Upper Moselle Valley
    		Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997
    • Provence-Alpes-Côte d'Azur
      • Hautes-Alpes
        • Lautaret pass area
    		R. Pierrot, P. Picot, P.A. Poulain, "Inventaire Minéralogique de la France : Hautes-Alpes", BRGM, 1972
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Hausach
    		K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
    • Hesse
      • Odenwald
        • Bensheim
          • Hochstädten (Auerbach-Hochstädten)
    		S. Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Lindenfels
          • Erlenbach
    		S. Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • North Rhine-Westphalia
      • Siegerland
        • Eiserfeld
    		Henrich, M. (2008): Neues von der Grube Eisenzecher Zug. Mineralien-Welt 19 (5), 16-25.
    • Rhineland-Palatinate
      • Siegerland
        • Betzdorf
          • Schutzbach
        • Niederfischbach
    		Weiss: "Mineralfundstellen, Deutschland West", 1990
    Hungary
     
    • Pest Co.
      • Börzsöny Mts.
        • Márianosztra
    		Szakáll & Jánosi. Minerals of Hungary, 1995
        • Nagybörzsöny
    		Szakáll & Jánosi: Minerals of Hungary, 1995
    Japan
     
    • Honshu Island
      • Chugoku Region
        • Okayama Prefecture
          • Takahashi
    		Matsueda, H. (1983) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #3, 259-292.
      • Kinki Region
        • Nara Prefecture
    		Rocks & Min.: 22:223.
        • Wakayama Prefecture
          • Otsuga-mura
            • Nishi-muro-gun
    		Rocks & Min.: 22:223.
    Mexico
     
    • Sonora
      • Mun. de Alamos
        • San Bernardo
    		Panczner (1987): 166-364.
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Boumalne-Dadès
    		No reference listed
        • Tazenakht
          • Bou Azzer District
    		No reference listed
    Namibia
     
    • Otjikoto (Oshikoto) Region
      • Tsumeb
    		No reference listed
    New Zealand
     
    • North Island
    		Econ Geol (1997) 92:485-489
    Norway
     
    • Akershus
      • Asker
    		Antun (1967, p. 225); Neumann (1985, p. 41).
    • Buskerud
      • Modum
        • Snarum
    		Neumann (1985, p. 41).
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Lwówek District
        • Gierczyn-Przecznica area
    		Piestrzyński A., Mochnacka K., Mayer W., Kucha H. 1992: Native gold (electrum), Fe-Co-Ni arsenides and sulphoarsenides in the mica schists from Przecznica, the Kamienica Range, SW Poland. Mineralogia Polonica, vol. 23, no 1, 27-42
    Romania
     
    • Caras-Severin Co.
      • Banat Mts
        • Oraviţa-Ciclova Cu-Mo-(W) ore field
    		Singer, D.A., Berger, V.I., and Moring, B.C. (2008): US Geological Survey Open-File Report 2008-1155.
    Russia
     
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Chitinskaya Oblast'
          • Vershino-Darasunskiy
    		Prokof’ev, V.Y., Zorina, L.D., Kovalenker, V.A., Akinfiev, N.N., Baksheev, I.A., Krasnov, A.N., Yurgenson, G.A., and Trubkin, N.V. (2007): Geology of Ore Deposits 49(1), 31-68.
    • Far-Eastern Region
      • Magadanskaya Oblast'
        • Kolyma River Basin
          • Omchak gold field
    		Goryachev, N.A., Vikent’eva, O.V., Bortnikov, N.S., Prokof’ev, V.Y., Alpatov, V.A., and Golub, V.V. (2008): Geology of Ore Deposits 50(5), 362-390.
    Slovakia
     
    • Banská Bystrica Region
      • Western Slovenské Rudohorie Mts
        • Hnúšťa
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    • Bratislava Region
      • Malé Karpaty Mts
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
        • Pernek
          • Krížnica
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    • Košice Region
      • Eastern Slovenské Rudohorie Mts
    		Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
        • Gelnica ore belt
    		Pauliš P., Ďuďa R., 2002: Nejzajimavejší mineralogická nalezište Slovenska. Kuttna, Kutná Hora, 134p.
    Háber,M., 1980: Mineralogische – geochemische und paragenetische Erfoschung hydrotermaler Gänge im Gebiet zwischen Prakovce und Kojšov (SGR). Záp.Karpáty – sér. Miner.,petrograf.,geochém., metalog., 7 – 131
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
        • Hnilec
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
        • Košická Belá
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
        • Medzev
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
        • Poproč
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
        • Prakovce
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
        • Rožňava (Rozsnyo; Rosenau) Mining District
          • Čučma (Csucsom; Tschutschma)
            • Stredná Hora hill
    		Peterec D., Ďuďa R., 2003 : Zriedkavé miberály Mn – ložiska pri Čučme. Natura Carpatica (Košice), 44, s.229-236
    Ďuďa R., Peterec D., 1995 : Die Mineralien der siderit - baryt lagersttäte von Rudňany ( Kotterbach ) in der Slowakei. Mineralien Welt /Haltern/, 1, s.20 - 31
        • Smolnik Mining District
          • Bystrý Potok
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
          • Smolnícka Huta
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    South Africa
     
    • Free State Province
    		Minerals of South Africa
    • Mpumalanga Province
      • Marble Hall
    		Minerals of South Africa
    Spain
     
    • Andalusia
      • Huelva
        • Alosno
          • Tharsis
    		Tornos, F., González Clavijo, E., and Spiro, B. (1998): Mineralium Deposita 33, 150-169.
        • Cala
          • Cala Mines
    		Calvo, M. (2003) Minerales y Minas de España, Vol 2. Diputación Foral de Alava. 705 pages.
    Sweden
     
    • Närke
      • Askersund
    		No reference listed
        • Åmmeberg
    		No reference listed
    No reference listed
    No reference listed
    • Västmanland
      • Lindesberg
    		No reference listed
    Switzerland
     
    • Wallis (Valais)
      • Turtmann Valley
        • Blüomatttälli
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 186.
      • Zermatt - Saas Fee area
        • Matt Valley
          • Stalden
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 186.
    UK
     
    • England
      • Cumbria
        • North and Western Region (Cumberland)
          • Braithwaite District
            • Causey Pike
              • Scar Crag
    		BMS Database
          • North Pennines
            • Alston Moor District
              • South Tynedale
                • Garrigill
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
        • South Western Region (Furness)
          • Coniston District
    		BMS Database
    USA
     
    • Alaska
      • Bethel Borough
        • McGrath District
    		U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
    • Arizona
      • Graham Co.
        • San Carlos Indian Reservation
          • Santa Teresa Mts
            • Stanley District
              • Stanley Butte area
    		MRDS database Dep. ID #10067567, MRDS ID #W000352.
    • Colorado
      • Jefferson Co.
        • Ralston Buttes District
    		Minerals of Colorado (1997) Eckels, E. B.
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Franklin
    		Nikischer, T.: The Picking Table:42(1):20, 2001. Analysis by Andy Roberts.
    • New Mexico
      • Colfax Co.
    		Minerals of New Mexico 3rd ed.
    Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
          • Ponil District
    		NMGS 38th Field Conference
    • Oregon
      • Baker Co.
        • Cracker Creek District (Sumpter District; Bourne District; McCully District)
    		Dana 7:I:324.
      • Grant Co.
        • Quartzburg District (Comer District)
    • Pennsylvania
      • Montgomery Co.
        • Marlborough Township
          • Perkiomenville
    		Reed, Juliet C. (1976), Annotated Biblio. of Minerals New to the PA List 1965-1974, The Min. Soc. of PA, Inc.: 44-45; Montgomery, A. (Jan & Oct, 1974), PM(133) & (142); Grant, Raymond W. (1974), "PA Min. Species as of Aug, 1974," PM (141).
    • Washington
      • Okanogan Co.
        • Mazama District
          • Windy Pass
    		``Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956; Minerals of Washington, B. Cannon, 1975
    • Wisconsin
      • Rusk Co.
        • Ladysmith
    		[MinRecord 30:114]
    Mineral and/or Locality
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