Krut'aite

krutaite

Images

Formula: CuSe2
Selenide, pyrite group, paramorph of petříčekite, forms a series with trogtalite
Hardness: 4
Streak: Dark grey
Colour: Grey
Common impurities: Co,Ni,Fe,Hg
Environments

Hydrothermal environments

Krut'aite is of hydrothermal origin. Associated minerals include clausthalite, eskebornite, uraninite, hematite, ferroselite, bukovite, umangite, berzelianite, chalcopyrite and goethite (HOM).

Localities

At the type locality, Petrovice, Nové Město na Moravě, Žďár nad Sázavou District, Vysočina Region, Czech Republic, krut'aite occurs as crystals up to a few tenths of a mm in size, associated with berzelianite, umangite, clausthalite, klockmannite, eskebornite, ferroselite, pitchblende and hematite, in dolomite-calcite gangue (AM 59.210).

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