Hakite-(Hg)

hakite-(Hg)

berzelianite

clausthalite

umangite

Images

Formula: Cu6(Cu4Hg2)Sb4Se13
Sulphosalt, tetrahedrite group
Specific gravity: 6.3 calculated
Hardness: 4½
Streak: White
Colour: Grey-brown to creamy white
Common impurities: As
Environments

Hydrothermal environments

Hakite-(Hg) occurs in epithermal calcite veins. Associated minerals include berzelianite, clausthalite, umangite, chalcopyrite, pyrite, uraninite, hematite, goethite and gold (HOM).

Localities

At the type locality, the Předbořice deposit, Předbořice, Kovářov, Písek District, South Bohemian Region, Czech Republic, hakite-(Hg) occurs as anhedral grains to 0.3 mm in epithermal calcite veins, associated with berzelianite, clausthalite, umangite and six other selenides, as well as chalcopyrite, pyrite, pitchblende, hematite, goethite and native gold (AM 57.1553-1554).

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