Mattagamite
A valid IMA mineral species
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About Mattagamite
Unique Identifiers
Mindat ID:
2595
Long-form identifier:
mindat:1:1:2595:5
GUID
(UUID V4):
(UUID V4):
401e9337-e321-473b-a908-4bd72f4e85df
IMA Classification of Mattagamite
Approved
First published:
1973
Classification of Mattagamite
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 : 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
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
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 Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMAâCNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMAâCNMNC symbol. Older variants are listed for historical use only.
Symbol | Source | Reference |
---|---|---|
Mtg | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Mtg | The 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 Mattagamite
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 Mattagamite
Anisotropism:
Weak, pinkish violet to grayish violet.
Reflectivity:
Wavelength | R1 | R2 |
---|---|---|
400nm | 50.2% | 62.2% |
420nm | 51.0% | 60.3% |
440nm | 51.8% | 58.4% |
460nm | 51.0% | 56.6% |
480nm | 49.9% | 55.6% |
500nm | 48.7% | 54.7% |
520nm | 48.2% | 54.2% |
540nm | 47.9% | 53.9% |
560nm | 47.8% | 53.9% |
580nm | 47.7% | 54.0% |
600nm | 47.8% | 54.3% |
620nm | 48.0% | 54.7% |
640nm | 48.3% | 55.2% |
660nm | 48.6% | 55.6% |
680nm | 48.9% | 56.3% |
700nm | 49.1% | 56.9% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. 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 Mattagamite
Mindat Formula:
CoTe2
Elements listed:
Common Impurities:
Fe,Sb
Crystallography of Mattagamite
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/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 Ă
Âł (Calculated from Unit Cell)
Z:
2
Twinning:
In polished section twinning commonly observed perpendicular to elongation axis of the laths
Comment:
synthetic
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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CIF File Best | x | y | z | a | b | c
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Rotation
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Labels
Console Off | On | Grey | Yellow
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0015752 | Mattagamite | Tengner S (1938) Uber diselenide und ditelluride von eisen, kobalt und nickel Zeitschrift fur Anorganische und Allgemeine Chemie 239 126-132 | 1938 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.805 Ă | (10) |
2.703 Ă | (8) |
2.066 Ă | (6) |
1.843 Ă | (4) |
3.31 Ă | (3) |
1.583 Ă | (3) |
1.514 Ă | (2) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-đ alteration and/or metamorphism | |
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Mattagamite
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:
Reference:
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.
Synonyms of Mattagamite
Other Language Names for Mattagamite
German:Mattagamit
Russian:ĐĐ°ŃŃĐ°ĐłĐ°ĐŒĐžŃ
Simplified Chinese:ææčçąČéŽçż
Spanish:Mattagamita
Traditional Chinese:ææčçąČé·ç€Š
Relationship of Mattagamite to other Species
Member of:
Other Members of this group:
Ferroselite | FeSe2 | Orth. mmm (2/m 2/m 2/m) : Pnnm |
Frohbergite | FeTe2 | Orth. mmm (2/m 2/m 2/m) : Pnnm |
Kullerudite | NiSe2 | Orth. mmm (2/m 2/m 2/m) : Pnnm |
Marcasite | FeS2 | Orth. mmm (2/m 2/m 2/m) : Pnnm |
PetĆĂÄekite | CuSe2 | Orth. mmm (2/m 2/m 2/m) : Pnnm |
Forms a series with:
Common Associates
Associated Minerals Based on Photo Data:
6 photos of Mattagamite associated with Altaite | PbTe |
2 photos of Mattagamite associated with Tellurantimony | Sb2Te3 |
2 photos of Mattagamite associated with Chalcopyrite | CuFeS2 |
Related Minerals - Strunz-mindat Grouping
2.EB. | Iridarsenite | (Ir,Ru)As2 |
2.EB. | Selenolaurite | RuSe2 |
2.EB. | Andrieslombaardite | RhSbS |
2.EB. | Kanatzidisite | (SbBiS3)2Te2 |
2.EB.05a | Aurostibite | AuSb2 |
2.EB.05b | Bambollaite | Cu(Se,Te)2 |
2.EB.05a | Cattierite | CoS2 |
2.EB.05a | Erlichmanite | OsS2 |
2.EB.05a | Fukuchilite | Cu3FeS8 |
2.EB.05a | Geversite | PtSb2 |
2.EB.05a | Hauerite | MnS2 |
2.EB.05a | Insizwaite | Pt(Bi,Sb)2 |
2.EB.05a | Krut'aite | CuSe2 |
2.EB.05a | Laurite | RuS2 |
2.EB.05a | Penroseite | (Ni,Co,Cu)Se2 |
2.EB.05a | Pyrite | FeS2 |
2.EB.05a | Sperrylite | PtAs2 |
2.EB.05a | Trogtalite | CoSe2 |
2.EB.05a | Vaesite | NiS2 |
2.EB.05a | VillamanĂnite | (Cu,Ni,Co,Fe)S2 |
2.EB.05a | Dzharkenite | FeSe2 |
2.EB.05a | Gaotaiite | Ir3Te8 |
2.EB.05a v | Cayeuxite | |
2.EB.10b | Alloclasite | Co1-xFexAsS |
2.EB.10d | Costibite | CoSbS |
2.EB.10a | Ferroselite | FeSe2 |
2.EB.10a | Frohbergite | FeTe2 |
2.EB.10c | Glaucodot | (Co0.50Fe0.50)AsS |
2.EB.10a | Kullerudite | NiSe2 |
2.EB.10a | Marcasite | FeS2 |
2.EB.10e | Paracostibite | CoSbS |
2.EB.10e | Pararammelsbergite | NiAs2 |
2.EB.10f | Oenite | CoSbAs |
2.EB.10a | PetĆĂÄekite | CuSe2 |
2.EB.15a | Anduoite | (Ru,Os)As2 |
2.EB.15a | Clinosafflorite | CoAs2 |
2.EB.15a | Löllingite | FeAs2 |
2.EB.15a | Nisbite | NiSb2 |
2.EB.15a | Omeiite | (Os,Ru)As2 |
2.EB.15c | Paxite | CuAs2 |
2.EB.15a | Rammelsbergite | NiAs2 |
2.EB.15a | Safflorite | (Co,Ni,Fe)As2 |
2.EB.15b | SeinÀjokite | (Fe,Ni)(Sb,As)2 |
2.EB.20 | Arsenopyrite | FeAsS |
2.EB.20 | Gudmundite | FeSbS |
2.EB.20 | Osarsite | (Os,Ru)AsS |
2.EB.20 | Ruarsite | (Ru,Os)AsS |
2.EB.25 va | Antimony-bearing Gersdorffite | Ni(As,Sb)S |
2.EB.25 | Cobaltite | CoAsS |
2.EB.25 | Gersdorffite | NiAsS |
2.EB.25 | Hollingworthite | (Rh,Pt,Pd)AsS |
2.EB.25 | Irarsite | (Ir,Ru,Rh,Pt)AsS |
2.EB.25 | Jolliffeite | NiAsSe |
2.EB.25 | Krutovite | NiAs2 |
2.EB.25 | Maslovite | PtBiTe |
2.EB.25 | Michenerite | PdBiTe |
2.EB.25 | Padmaite | PdBiSe |
2.EB.25 | Platarsite | Pt(As,S)2 |
2.EB.25 | Testibiopalladite | PdSbTe |
2.EB.25 | Tolovkite | IrSbS |
2.EB.25 | Ullmannite | NiSbS |
2.EB.25 | Willyamite | CoSbS |
2.EB.25 | Changchengite | IrBiS |
2.EB.25 | Mayingite | IrBiTe |
2.EB.25 | Kalungaite | PdAsSe |
2.EB.25 | Milotaite | PdSbSe |
2.EB.25 | Paragersdorffite | Ni(As,S)2 |
2.EB.25 | Orthogersdorffite | NiAsS |
2.EB.30 | Urvantsevite | Pd(Bi,Pb)2 |
2.EB.35 | Rheniite | ReS2 |
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.
Internet Links for Mattagamite
mindat.org URL:
https://www.mindat.org/min-2595.html
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References for Mattagamite
Localities for Mattagamite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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.
All localities listed without proper references should be considered as questionable.
Australia | |
| Noble (2017) |
| Rice et al. (2016) |
| Hassan et al. (2017) |
Canada | |
| Legault et al. (2002) |
| BROSTIGEN et al. (1970) +2 other references |
Finland | |
| Kalinin (2021) |
Geological Survey of Finland 2007 ... +1 other reference | |
Kazakhstan | |
| Spiridonov (2014) |
Russia | |
| Maslennikov et al. (2005) |
| Kalinin (2021) |
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Mattagami Lake mine, Matagami, Nord-du-Québec, Québec, Canada