Tellurobismuthite
Tellurobismuthite is a telluride mineral: bismuth telluride (Bi2Te3). It has a trigonal structure and lattice parameters a=0.439 nm and c=3.06 nm. There are natural cleavage planes in the (0001) direction as the crystal is effectively lamellar (layered) in that plane. The Mohs hardness is 2 and the specific gravity is 7.815. It is a dull grey colour, which is particularly lustrous on initial fracture.
It is found in Telemark, Norway and in the USA in Hidalgo County, New Mexico and Lumpkin County, Georgia.
See also
References
- D. M Chizhikov and V. P. Shchastlivyi, 1966, Tellurium and Tellurides, Nauka Publishing, Moscow
- Mindat
- Webmineral data
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