Bismuthinite Bismuth Specimen Russian Stone Gemstone Mineral

$21.00

1 in stock

Description

BISMUTHINITE SPECIMEN

This is the raw lead gray bismuthinite specimen with feldspar. Dimensions: 2 x 1.7 x 1.3″ (5.1 x 4.2 x 3.4cm). Weight – 3.6oz (102 grams). Origin: Russia, Transbaikalia.

Some information about bismuthinite:

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 scratched with a fingernail and rather dense.

Bismuthinite occurs in hydrothermal veins with tourmaline-bearing copper veins associated with granite, in some high temperature gold veins, and in recent volcanic exhalation deposits.

It was first reported in 1832 from the mines of PotosĂ­, Bolivia (More information about bismuthinite).

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Additional information

Weight 102 g