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Mattagamite

A valid IMA mineral species
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09438500017629705006483.jpg
Mattagamite, etc.

Mattagami Lake mine, Matagami, Jamésie, Nord-du-Québec, Québec, Canada
00465390017271995165200.jpg
Mattagamite, etc.

Mattagami Lake mine, Matagami, Jamésie, Nord-du-Québec, Québec, Canada
05509250017271995146406.jpg
Mattagamite, etc.

Mattagami Lake mine, Matagami, Jamésie, Nord-du-Québec, Québec, Canada
03560670017643831713397.jpg
Mattagamite, etc.

Mattagami Lake mine, Matagami, Jamésie, Nord-du-Québec, Québec, Canada
03742930017271925008136.jpg
Mattagamite, etc.

Mattagami Lake mine, Matagami, Jamésie, Nord-du-Québec, Québec, Canada
01753530017271925033696.jpg
Mattagamite, etc.

Mattagami Lake mine, Matagami, Jamésie, Nord-du-Québec, Québec, Canada
09438500017629705006483.jpg
Mattagamite, etc.

Mattagami Lake mine, Matagami, Jamésie, Nord-du-Québec, Québec, Canada
05515610017271925061854.jpg
Mattagamite, etc.

Mattagami Lake mine, Matagami, Jamésie, Nord-du-Québec, Québec, Canada
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About MattagamiteHide

08156370017271925077718.jpg
Mattagami Lake mine buildings

Mattagami Lake mine, Matagami, Jamésie, Nord-du-Québec, Québec, Canada
Formula:
CoTe2
Colour:
Violet
Lustre:
Metallic
Hardness:
5½
Specific Gravity:
8.00 (Calculated)
Crystal System:
Orthorhombic
Member of:
Marcasite Group
Name:
For the type locality, the Mattagami Lake mines, Mattagami, Galinee Township, Abitibi Co., Québec, Canada.
Frohbergite-Mattagamite Series.


Unique IdentifiersHide

Mindat ID:
2595
Long-form identifier:
mindat:1:1:2595:5

IMA Classification of MattagamiteHide

Classification of MattagamiteHide

Strunz-mindat (2026):
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.
Dana 8th ed.:
2.12.2.5

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference for Standard
MtgIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
MtgThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of MattagamiteHide

Lustre:
Metallic
Transparency:
Opaque
Colour:
Violet
Hardness:
5½ on Mohs scale
Hardness:
VHN25=383 - 404 kg/mm2 - Vickers
Density:
8.00 g/cm3 (Calculated)

Optical Data of MattagamiteHide

Anisotropism:
Weak, pinkish violet to grayish violet.
Reflectivity:
WavelengthR1 (%)R2 (%)
400nm50.2%62.2%
420nm51.0%60.3%
440nm51.8%58.4%
460nm51.0%56.6%
480nm49.9%55.6%
500nm48.7%54.7%
520nm48.2%54.2%
540nm47.9%53.9%
560nm47.8%53.9%
580nm47.7%54.0%
600nm47.8%54.3%
620nm48.0%54.7%
640nm48.3%55.2%
660nm48.6%55.6%
680nm48.9%56.3%
700nm49.1%56.9%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 62.2%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Violet
Pleochroism:
Weak
Comments:
From pink to cream.

Chemistry of MattagamiteHide

Mindat Formula:
CoTe2
Element Weights:
Element% weight
Te81.239 %
Co18.761 %

Calculated from ideal end-member formula.
Elements listed:
Co, Te - search for minerals with similar chemistry
Common Impurities:
Fe,Sb

Crystallography of MattagamiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Pnnm
Setting:
Pnnm
Cell Parameters:
a = 5.31 Å, b = 6.31 Å, c = 3.88 Å
Ratio:
a:b:c = 0.842 : 1 : 0.615
Unit Cell V:
130.00 ų (Calculated from Unit Cell)
Z:
2
Twinning:
In polished section twinning commonly observed perpendicular to elongation axis of the laths
Comment:
synthetic

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0015752MattagamiteTengner S (1938) Uber diselenide und ditelluride von eisen, kobalt und nickel Zeitschrift fur Anorganische und Allgemeine Chemie 239 126-13219380293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.805 Å(10)
2.703 Å(8)
2.066 Å(6)
1.843 Å(4)
3.31 Å(3)
1.583 Å(3)
1.514 Å(2)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of MattagamiteHide

Type Locality:
ⓘ Mattagami Lake mine, Matagami, Jamésie, Nord-du-Québec, Québec, Canada
General Appearance of Type Material:
As equidimensional and rarer bladelike grains isolated in altaite
Place of Conservation of Type Material:
Canadian Geological Survey, Ottawa; Royal Ontario Museum, Toronto, Canada, M31956.
Geological Setting of Type Material:
In a small telluride zone in a massive zinc-rich stratiform deposit in Archaen volcanics
Associated Minerals at Type Locality:
AltaiteChalcopyriteChlorite GroupFrohbergiteMagnetite
PyrrhotiteTalc
Reference:
Thorpe, R. I., Harris, D. C. (1973) Mattagamite and tellurantimony, two new telluride minerals from Mattagami Lake mine, Matagami area, Quebec. The Canadian Mineralogist, 12 (1) 55-60

Synonyms of MattagamiteHide

Other Language Names for MattagamiteHide

German:Mattagamit
Simplified Chinese:斜方碲钴矿
Spanish:Mattagamita
Traditional Chinese:斜方碲鈷礦

Relationship of Mattagamite to other SpeciesHide

Member of:
Marcasite Group
Other Members of Marcasite Group:
FerroseliteFeSe2Orth. mmm(2/m2/m2/m) : Pnnm
FrohbergiteFeTe2Orth. mmm(2/m2/m2/m) : Pnnm
KulleruditeNiSe2Orth. mmm(2/m2/m2/m) : Pnnm
MarcasiteFeS2Orth. mmm(2/m2/m2/m) : Pnnm
PetříčekiteCuSe2Orth. mmm(2/m2/m2/m) : Pnnm
Forms a series with:
FrohbergiteFrohbergite-Mattagamite Series

Common AssociatesHide

Associations Based on Photo Data:
9 photos of Mattagamite associated with AltaitePbTe
5 photos of Mattagamite associated with TellurantimonySb2Te3
2 photos of Mattagamite associated with MeloniteNiTe2
2 photos of Mattagamite associated with ChalcopyriteCuFeS2
2 photos of Mattagamite associated with FrohbergiteFeTe2
2 photos of Mattagamite associated with Native GoldAu
2 photos of Mattagamite associated with PetziteAg3AuTe2

Related Minerals - Strunz-mindat GroupingHide

2.EB.SelenolauriteRuSe2Iso. m3(2/m3) : Pa3
2.EB.AndrieslombaarditeRhSbSIso. 23 : P213
2.EB.Iridarsenite(Ir,Ru)As2Mon. 2/m : P21/b
2.EB.Kanatzidisite(SbBiS3)2Te2Mon. 2/m : P21/m
2.EB.05aVaesiteNiS2Iso. m3(2/m3) : Pa3
2.EB.05aHaueriteMnS2Iso. m3(2/m3) : Pa3
2.EB.05aLauriteRuS2Iso. m3(2/m3) : Pa3
2.EB.05aGaotaiiteIr3Te8Iso. m3(2/m3) : Pa3
2.EB.05aPenroseite(Ni,Co,Cu)Se2Iso. m3(2/m3) : Pa3
2.EB.05aFukuchiliteCu3FeS8Iso. m3(2/m3) : Pa3
2.EB.05aVillamanínite(Cu,Ni,Co,Fe)S2Tric.
2.EB.05aErlichmaniteOsS2Iso. m3(2/m3) : Pa3
2.EB.05aSperrylitePtAs2Iso. m3(2/m3) : Pa3
2.EB.05aGeversitePtSb2Iso. m3(2/m3) : Pa3
2.EB.05aCattieriteCoS2Iso. m3(2/m3) : Pa3
2.EB.05aAurostibiteAuSb2Iso. m3(2/m3) : Pa3
2.EB.05aTrogtaliteCoSe2Iso. m3(2/m3) : Pa3
2.EB.05a v'Cayeuxite'
2.EB.05aKruťaiteCuSe2Iso. m3(2/m3) : Pa3
2.EB.05aPyriteFeS2Iso. m3(2/m3) : Pa3
2.EB.05aInsizwaitePtBi2Iso. m3(2/m3) : Pa3
2.EB.05bBambollaiteCu(Se,Te)2Tet.
2.EB.05aDzharkeniteFeSe2Iso. m3(2/m3) : Pa3
2.EB.10aMarcasiteFeS2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.10eParacostibiteCoSbSOrth. mmm(2/m2/m2/m) : Pbca
2.EB.10fOeniteCoSbAsOrth.
2.EB.10ePararammelsbergiteNiAs2Orth. mmm(2/m2/m2/m) : Pbca
2.EB.10aFrohbergiteFeTe2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.10dCostibiteCoSbSOrth. mm2 : Pmn21
2.EB.10bAlloclasiteCo1-xFexAsSMon. 2 : P21
2.EB.10cGlaucodot(Co0.50Fe0.50)AsSOrth. mm2 : Pmn21
2.EB.10aPetříčekiteCuSe2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.10aKulleruditeNiSe2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.10aFerroseliteFeSe2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.15bSeinäjokiteFeSb2Orth.
2.EB.15aRammelsbergiteNiAs2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.15aClinosaffloriteCoAs2Mon. 2/m : P21/m
2.EB.15cPaxiteCuAs2Mon. 2/m : P21/b
2.EB.15aNisbiteNiSb2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.15aLöllingiteFeAs2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.15aSafflorite(Co,Ni,Fe)As2Orth. mmm(2/m2/m2/m) : Pnnm
2.EB.15aOmeiiteOsAs2Orth.
2.EB.15aAnduoiteRuAs2Orth.
2.EB.20ArsenopyriteFeAsSMon. 2/m : P21/b
2.EB.20Ruarsite(Ru,Os)AsSMon.
2.EB.20Osarsite(Os,Ru)AsSMon.
2.EB.20GudmunditeFeSbSMon. 2/m : P21/b
2.EB.25MayingiteIrBiTeIso. m3(2/m3) : Pa3
2.EB.25MaslovitePtBiTeIso. 23 : P213
2.EB.25ParagersdorffiteNi(As,S)2Iso. m3(2/m3) : Pa3
2.EB.25OrthogersdorffiteNiAsSOrth. mm2 : Pca21
2.EB.25SulfopadmaitePdBiSIso. 23 : P213
2.EB.25JolliffeiteNiAsSeIso. m3(2/m3) : Pa3
2.EB.25CobaltiteCoAsSOrth. mm2 : Pca21
2.EB.25GuixiangiteNiBiSIso. 23 : P213
2.EB.25TestibiopalladitePdSbTeIso.
2.EB.25 va'Antimony-bearing Gersdorffite'Ni(As,Sb)S
2.EB.25KalungaitePdAsSeIso. m3(2/m3) : Pa3
2.EB.25Hollingworthite(Rh,Pt,Pd)AsSIso. m3(2/m3) : Pa3
2.EB.25MicheneritePdBiTeIso. 23 : P213
2.EB.25GersdorffiteNiAsSIso. 23 : P213
2.EB.25MilotaitePdSbSeIso. 23 : P213
2.EB.25TolovkiteIrSbSIso.
2.EB.25'Platarsite'Pt(As,S)2Iso. m3(2/m3) : Pa3
2.EB.25WillyamiteCoSbS
2.EB.25ChangchengiteIrBiSIso. 23 : P213
2.EB.25KvačekiteNiSbSeIso. 23 : P213
2.EB.25KrutoviteNiAs2Iso. 23 : P213
2.EB.25PadmaitePdBiSeIso. 432
2.EB.25UllmanniteNiSbSIso. 23 : P213
2.EB.25Irarsite(Ir,Ru,Rh,Pt)AsSIso. m3(2/m3) : Pa3
2.EB.30UrvantsevitePd(Bi,Pb)2Tet. 4/mmm(4/m2/m2/m) : I4/mmm
2.EB.35RheniiteReS2Tric. 1 : P1

Other InformationHide

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

Internet Links for MattagamiteHide

References for MattagamiteHide

Localities for MattagamiteHide

Showing 11 localities.

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.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Australia
 
  • Western Australia
    • Kalgoorlie-Boulder Shire
      • Kalgoorlie-Boulder
Noble (2017)
      • Mount Monger Goldfield
        • Aldiss-Karonie
Rice et al. (2016)
    • Sandstone Shire
Hassan et al. (2017)
Canada
 
  • Québec
    • Nord-du-Québec
      • Jamésie
        • Baie-James
Legault et al. (2002)
        • Matagami
BROSTIGEN et al. (1970) +2 other references
Kasprowicz (2023)
Finland
 
  • North Ostrobothnia
Kalinin (2021)
Geological Survey of Finland 2007 ... +1 other reference
Kazakhstan
 
  • Akmola Region
    • Stepnogorsk
      • Stepnyak group
Spiridonov (2014)
Russia
 
  • Bashkortostan
    • Baymaksky District
Maslennikov et al. (2005)
  • Murmansk Oblast
    • Northern Karelia
      • Salla-Kuolajarvi belt
Kalinin (2021)
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