Kotulskite

minerals

moncheite

michenerite

pentlandite

Formula: Pd(Te,Bi)2-x (x ≈ 0.4)
Telluride/Bismuthide, nickeline group, forms a series with sobolevskite and sudburyite
Specific gravity: 8.26
Hardness: 4 to 4½
Colour: Grey, steel-grey
Common impurities: Pt
Environments

Hydrothermal environments

Kotulskite is a minor accessory mineral, of primary or secondary hydrothermal origin, in many platinum-palladium bearing copper-nickel deposits in ultramafic rocks. Associated minerals include sobolevskite, merenskyite, melonite, michenerite, moncheite, braggite, chalcopyrite, bornite, pentlandite, pyrrhotite and pyrite (HOM)

Localities

At the type locality, the Monchegorsk Cu-Ni Deposit, Monchegorsk, Murmansk Oblast, Russia, kotulskite occurs as grains in chalcopyrite veins cutting magnetite, often intergrown with moncheite and michenerite (AM 48.1181, Webmin).

Back to Minerals