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Formula: Sb3+2Mo6+O6
Oxide, antimony- and
molybdenum- bearing mineral
Crystal System: Monoclinic
Specific gravity: 5.23 calculated
Hardness: 1 to 1½
Streak: White
Colour: White
Solubility: Resistant to dilute hydrochloric acid but rapidly soluble in concentrated hydrochloric acid
Environments
Biehlite is a very rare mineral reported only from its type locality, the Tsumeb Mine, Oshikoto Region, Namibia
(as of July 2023). Here it is a secondary mineral found
associated with anglesite and
wulfenite on fine-grained copper ore in the oxidation zone of the mine, in a
dolostone-hosted hydrothermal polymetallic ore deposit
(Mindat, Webmin, AM 86.197).
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