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Mattagamite

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Formula:
CoTe2
System:
Orthorhombic
Colour:
Violet
Hardness:
Member of:
Name:
For the type locality, the Mattagami Lake mines, Mattagami, Galinee Township, Abitibi Co., Québec, Canada.

Classification of Mattagamite

Approved
2.EB.10a

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.
2.12.2.5

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2
3.10.8

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
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Type Occurrence of Mattagamite

Year of Discovery:
1973
Associated Minerals at Type Locality:

Physical Properties of Mattagamite

Metallic
Colour:
Violet
Hardness (Mohs):

Crystallography of Mattagamite

Crystal System:
Orthorhombic
Cell Parameters:
a = 5.31Å, b = 6.31Å, c = 3.88Å
Ratio:
a:b:c = 0.842 : 1 : 0.615
Unit Cell Volume:
V 130.00 ų (Calculated from Unit Cell)

Chemical Properties of Mattagamite

Formula:
CoTe2
Essential elements:
All elements listed in formula:
Common Impurities:
Fe,Sb

Relationship of Mattagamite to other Species

Series:
Forms a series with Frohbergite (see here)
Member of:
Other Members of Group:
2.EB.05aAurostibiteAuSb2
2.EB.05bBambollaiteCu(Se,Te)2
2.EB.05aCattieriteCoS2
2.EB.05aErlichmaniteOsS2
2.EB.05aFukuchiliteCu3FeS8
2.EB.05aGeversitePtSb2
2.EB.05aHaueriteMnS2
2.EB.05aInsizwaitePt(Bi,Sb)2
2.EB.05aKrut'aiteCuSe2
2.EB.05aLauriteRuS2
2.EB.05aPenroseite(Ni,Co,Cu)Se2
2.EB.05aPyriteFeS2
2.EB.05aSperrylitePtAs2
2.EB.05aTrogtaliteCoSe2
2.EB.05aVaesiteNiS2
2.EB.05aVillamaninite(Cu,Ni,Co,Fe)S2
2.EB.05aDzharkeniteFeSe2
2.EB.05aGaotaiiteIr3Te8
2.EB.10bAlloclasiteCo1-xFexAsS
2.EB.10dCostibiteCoSbS
2.EB.10aFerroseliteFeSe2
2.EB.10aFrohbergiteFeTe2
2.EB.10cGlaucodot(Co0.50Fe0.50)AsS
2.EB.10aKulleruditeNiSe2
2.EB.10aMarcasiteFeS2
2.EB.10eParacostibiteCoSbS
2.EB.10ePararammelsbergiteNiAs2
2.EB.10fOeniteCoSbAs
2.EB.15aAnduoite(Ru,Os)As2
2.EB.15aClinosaffloriteCoAs2
2.EB.15aLöllingiteFeAs2
2.EB.15aNisbiteNiSb2
2.EB.15aOmeiite(Os,Ru)As2
2.EB.15cPaxiteCuAs2
2.EB.15aRammelsbergiteNiAs2
2.EB.15aSafflorite(Co,Ni,Fe)As2
2.EB.15bSeinäjokite(Fe,Ni)(Sb,As)2
2.EB.20ArsenopyriteFeAsS
2.EB.20GudmunditeFeSbS
2.EB.20Osarsite(Os,Ru)AsS
2.EB.20Ruarsite(Ru,Os)AsS
2.EB.25CobaltiteCoAsS
2.EB.25GersdorffiteNiAsS
2.EB.25Hollingworthite(Rh,Pt,Pd)AsS
2.EB.25Irarsite(Ir,Ru,Rh,Pt)AsS
2.EB.25JolliffeiteNiAsSe
2.EB.25KrutoviteNiAs2
2.EB.25MaslovitePtBiTe
2.EB.25MicheneritePdBiTe
2.EB.25PadmaitePdBiSe
2.EB.25PlatarsitePtAsS
2.EB.25TestibiopalladitePdTe(Sb,Te)
2.EB.25TolovkiteIrSbS
2.EB.25UllmanniteNiSbS
2.EB.25Willyamite(Co,Ni)SbS
2.EB.25ChangchengiteIrBiS
2.EB.25MayingiteIrBiTe
2.EB.25Hollingsworthite
2.EB.25KalungaitePdAsSe
2.EB.25MilotaitePdSbSe
2.EB.30UrvantsevitePd(Bi,Pb)2
2.EB.35RheniiteReS2
3.10.1Cobaltpentlandite(Co,Ni,Fe)9S8
3.10.2LinnaeiteCo2+Co23+S4
3.10.3CattieriteCoS2
3.10.4FrebolditeCoSe
3.10.5BornhardtiteCo2+Co23+Se4
3.10.6TrogtaliteCoSe2
3.10.7Hastite
3.10.9Modderite(Co,Fe)As
3.10.10Safflorite(Co,Ni,Fe)As2
3.10.11ClinosaffloriteCoAs2
3.10.12SkutteruditeCoAs3-x
3.10.13CobaltiteCoAsS
3.10.14ParacostibiteCoSbS
3.10.15CostibiteCoSbS
3.10.16AlloclasiteCo1-xFexAsS
3.10.17Glaucodot(Co0.50Fe0.50)AsS
3.10.18CarrolliteCu(Co,Ni)2S4

Other Names for Mattagamite

Name in Other Languages:
German:Mattagamit
Simplified Chinese:斜方碲钴矿
Spanish:Mattagamita
Traditional Chinese:斜方碲鈷礦

Other Information

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 Mattagamite

Reference List:
THORPE, R.I. & HARRIS, D.C. (1973): Mattagamite and tellurantimony, two new telluride minerals from Mattagami Lake mine, Matagami area, Quebec. Canadian Mineralogist 12, 55-60.
BROSTIGEN, G. & KJEKSHUS, A. (1970): Compounds with marcasite type crystal structure. V. The crystal structures of FeS2, FeTe2, and CoTe2. Acta Chimica Scandinavica 24, 1925-1940.

Internet Links for Mattagamite

Localities for Mattagamite

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.
Canada (TL)
 
  • Québec
    • Nord-du-Québec
      • Matagami
THORPE, R.I. & HARRIS, D.C. (1973): Mattagamite and tellurantimony, two new telluride minerals from Mattagami Lake mine, Matagami area, Quebec. Canadian Mineralogist 12, 55-60. BROSTIGEN, G. & KJEKSHUS, A. (1970): Compounds with marcasite type crystal structure. V. The crystal structures of FeS2, FeTe2, and CoTe2. Acta Chimica Scandinavica 24, 1925-1940. Econ.Geol.: 83; 395-404
Finland
 
  • Northern Finland Region
    • Kuusamo
Eilu, P. (2003). Exploration for orogenic gold deposits. Fennoscandian Exploration and Mining 2003. Rovaniemi, Finland ; Geological Survey of Finland 2007 Juomasuo - Gold Database
Mineral and/or Locality  
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