Gladite

gladite

bismutite

aikinite

galenobismutite

Images

Formula: CuPbBi5S9
Sulphosalt, member of the aikinite-bismuthinite series, bismuth-bearing mineral
Specific gravity: 6.96 measured, 6.903 calculated
Hardness: 2 to 3
Streak: Black
Colour: Tin-white to lead-grey
Common impurities: Fe
Environments

Hydrothermal environments

Gladite is of hydrothermal origin. Associated minerals include bismuthinite-aikinite, galenobismutite, makovickyite, nuffieldite, berryite, galena and quartz (HOM).

Localities

At the type locality, the Gladhammar mines, Västervik, Kalmar County, Sweden, gladite was found as crystals, 2 cm long and 2-6 mm thick, on quartz crystals with galenobismutite (AM 10.157-158).

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