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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
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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