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Bismuthinite is a mineral consisting of bismuth sulfide (Bi2S3). It is an important ore for bismuth. The crystals are steel-grey to off-white with a metallic luster. It is soft enough to be scratched with a fingernail and rather dense.
Additional recommended knowledge
It occurs in hydrothermal veins with tourmaline-bearing copper veins associated with granite, in some high temperature gold veins, and in recent volcanic exhalation deposits. Associated minerals include native bismuth, aikinite, arsenopyrite, stannite, galena, pyrite, chalcopyrite, tourmaline, wolframite, cassiterite and quartz.
It was first reported in 1832 from the mines of Potosí, Bolivia.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Bismuthinite". A list of authors is available in Wikipedia.|