Aikinite

minerals

enargite

tennantite

bismuthinite

Formula: CuPbBiS3
Sulphosalt, forms a series with bismuthinite
Specific gravity: 7.06 to 7.08
Hardness: 2 to 2½
Streak: Greyish black
Colour: Blackish lead-grey
Environments

Hydrothermal environments

Aikinite is an uncommon mineral in hydrothermal veins, associated with gold, pyrite, galena, tennantite, bismuthinite, enargite, chalcopyrite and quartz (HOM, Mindat).

Localities

The type locality is the Berezovsk Deposit, Beryozovsky, Sverdlovsk Oblast, Russia.

At the Carrock mine, Caldbeck Fells, Cumbria, England, UK, aikinite has been found as minute crystals in quartz stringers in greisen (C&S).

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