Sulphide, pentlandite group, and forms a series with it
Specific gravity: 5.22 calculated
Hardness: 4 to 4½
Common impurities: Fe,Ni
Cobaltpentlandite occurs with other sulphides and arsenides in hydrothermal deposits. Associated minerals include
pyrite variety bravoite, langisite and
At the Vauze Mine, Rouyn-Noranda TE, Abitibi-Témiscamingue, Quebec, Canada, cobaltpentlandite occurs as fine intergrowths in grains of linnaeite, associated with chalcopyrite, sphalerite and pyrrhotite (AM 50.2107-2108).
The type locality is the Varislahti deposit, Outokumpu Cu-Co-Zn-Ni-Ag-Au ore field, North Karelia, Finland.
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