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⇱ Mattagamite: Mineral information, data and localities.

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Mattagamite

A valid IMA mineral species
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About MattagamiteHide

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Formula:
CoTe2
Colour:
Violet
Lustre:
Metallic
Hardness:
5½
Specific Gravity:
8.00 (Calculated)
Crystal System:
Orthorhombic
Member of:
Name:
For the type locality, the Mattagami Lake mines, Mattagami, Galinee Township, Abitibi Co., Québec, Canada.

Unique IdentifiersHide

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

IMA Classification of MattagamiteHide

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Approved
First published:
1973

Classification of MattagamiteHide

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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

Mineral SymbolsHide

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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
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

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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

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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
Colour in reflected light:
Violet
Pleochroism:
Weak
Comments:
From pink to cream.

Chemistry of MattagamiteHide

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

Calculated from ideal end-member formula.
Common Impurities:
Fe,Sb

Crystallography of MattagamiteHide

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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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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
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

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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

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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

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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:

Synonyms of MattagamiteHide

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Other Language Names for MattagamiteHide

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

Relationship of Mattagamite to other SpeciesHide

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Member of:
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:

Common AssociatesHide

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Associated Minerals Based on Photo Data:
9 photos of Mattagamite associated with AltaitePbTe
5 photos of Mattagamite associated with TellurantimonySb2Te3
2 photos of Mattagamite associated with ChalcopyriteCuFeS2

Related Minerals - Strunz-mindat GroupingHide

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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 vCayeuxite
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.15aOmeiite(Os,Ru)As2Orth.
2.EB.15aAnduoite(Ru,Os)As2Orth.
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 vaAntimony-bearing GersdorffiteNi(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.25PlatarsitePt(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

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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

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mindat.org URL:
https://www.mindat.org/min-2595.html
Please feel free to link to this page.

References for MattagamiteHide

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Localities for MattagamiteHide

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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 👁 Image
symbol to view information about a locality. The 👁 Image
symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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👁 Image
- This locality has map coordinates listed. 👁 Image
- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species. 👁 Image
- 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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