Mattagamite
Mattagamite is an IMA-recognized mineral species in the sulfide class, with the chemical formula CoTe₂.
It crystallizes in the orthorhombic crystal system (space group Pmnn). It is a member of the Marcasite structural group.
Key properties: specific gravity 8.
IMA symbol Mtg, IMA status: approved, named in 1972.
Found in a small telluride zone in a massive zinc-rich stratiform deposit in Archaen volcanics (Mattagami Lake mine, Canada).
It is found associated with Frohbergite, altaite, pyrrhotite, chalcopyrite, magnetite, talc, chlorite (Mattagami Lake mine, Canada).
The name refers to its occurrence at Mattagami Lake, Canada.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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