Atlasovite
Atlasovite is an IMA-recognized mineral species in the sulfate class, with the chemical formula Cu²⁺₆Fe³⁺Bi³⁺O₄(SO₄)₅·KCl.
It crystallizes in the tetragonal crystal system (space group P4/ncc).
Key properties: Mohs hardness 2–2.5; specific gravity 4.2; Pale brown streak; Vitreous luster; optically uniaxial.
IMA symbol Atv, IMA status: approved, named in 1986.
Found as a volcanic sublimate.
It is found associated with Nabokoite, anglesite, dolerophanite, euchlorine, chloroxiphite, atacamite, piypite, chalcocyanite, alarsite, fedotovite, lammerite, klyuchevskite, langbeinite.
The name refers to Vladimir Vasil’evich Atlasov (1661/1664–1711), Russian traveller who first explored the Kamchatka Peninsula.
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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