Bismutostibiconite
Bismutostibiconite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula (Bi,Fe³⁺, )₂Sb⁵⁺₂O₇.
It crystallizes in the cubic crystal system (space group Fd3m). It is a member of the Pyrochlore structural group.
Key properties: Mohs hardness 4–5; specific gravity 7.38.
IMA symbol Bsbc, IMA status: questionable, named in 1981.
A secondary mineral formed as an alteration product of bismuthian tetrahedrite-tennantite.
It is found associated with Tetrahedrite-tennantite, chalcopyrite, beyerite, atelestite, preisingerite, bismutite, malachite, azurite, olivenite.
The name refers to a bismuth-containing member of the stibiconite group.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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