Tučekite

tucekite

millerite

gersdorffite

pentlandite

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Formula: Ni9Sb2S8
Sulphide, hauchecornite group, nickel and antimony bearing mineral
Crystal System: Tetragonal
Specific gravity: 6.15 calculated
Hardness: 6
Colour: Brass-yellow
Common impurities: Co,Fe,As,Bi,Te
Environments

Metamorphic environments
Hydrothermal environments

Localities

At the type locality, the Kanowna Goldfield, Kalgoorlie-Boulder Shire, Western Australia, tučekite was found in the hydrothermal deposit as microscopic grains in a mineralised chlorite schist, as rims and irregular grains partly replacing millerite. Associated minerals include pyrite, chalcopyrite, gersdorffite, pentlandite, magnetite and supergene polydymite (AM 64.465).

At the Vozhminskii Massif, Northern Karelia, Murmansk Oblast, Russia, tučekite occurs in serpentinites. Associated minerals include vozhminite, heazlewoodite, nickeline, maucherite, melonite, cobaltite, gersdorffite, magnetite, geversite, copper and silver (HOM).

At the Vaal Reefs Mine, Klerksdorp, Dr Kenneth Kaunda District Municipality, North West, South Africa, tučekite occurs in heavy mineral concentrates. Associated minerals include gold, dyscrasite, michenerite, geversite, tetrahedrite, stibnite and sudburyite (HOM).

At the Witwatersrand goldfield, South Africa, tučekite was found in gold-bearing conglomerates from at least two localities, in concentrates as rare free grains or intergrown with gold or with gersdorffite (AM 64.465).

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