Glaucodot

minerals

cobaltite

pyrite

chalcopyrite

Formula: (Co0.5Fe0.5)AsS
Sulphide
Specific gravity: 6.055
Hardness: 5
Streak: Black
Colour: Greyish tin-white to reddish silver-white
Common impurities: Ni
Environments

Hydrothermal environments

Glaucodot occurs in deep seated, high temperature hydrothermal deposits (Webmin, Mindat) associated with cobaltite, pyrite and chalcopyrite (Mindat, HOM).

Localities

The type locality is Huasco, Huasco Province, Atacama, Chile.

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