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Formula: ZnSn(OH)6
Hydroxide, schoenfliesite subgroup,
perovskite supergroup,
zinc- and tin- bearing mineral
Crystal System: Isometric
Specific gravity: 4.073 calculated
Hardness: 4
Streak: White
Colour: Pale yellow
Environments
Vismirnovite is formed by oxidation of earlier tin sulphides in
tin deposits
(HOM).
Localities
There are two co-type localities, Trudovoe (Trudovoye) Sn deposit (incl. Centralnyi; Lesistyi; Tashkoro), Inyl'chek
Range, Issyk-Kul Region, Kyrgyzstan and the Mushiston Deposit, Kaznok Valley, Pendzhikent District, Zeravshan Range,
Sughd, Tajikistan.
Vismirnovite and natanite were found as oxidation products of
stannite, associated with
varlamoffite, malachite,
azurite, goethite and other
secondary minerals
(AM 67.1074-1082).
At the Mushiston Deposit, Kaznok Valley, Pendzhikent District, Zeravshan Range, Sughd, Tajikistan,
vismirnovite is associated with stannite,
natanite, malachite,
azurite and goethite
(HOM).
Vismirnovite from the Mushiston Deposit -
Image
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