Batisivite
Batisivite is an IMA-recognized mineral species in the silicate class, with the chemical formula BaTi₆(V,Cr)₈(Si₂O₇)O₂₂.
It crystallizes in the triclinic crystal system (space group P-1).
Key properties: Mohs hardness 7–7.5; specific gravity 4.624; Black streak; Resinous. Bireflectance: Weak to moderate. Anisotropism: Weak luster.
IMA symbol Bsv, IMA status: approved, named in 2006.
An accessory mineral, frequently intergrown with schreyerite in quartz bands, in a Cr-V-rich quartz-diopside metamorphic rock.
It is found associated with Cr-V-bearing diopside and tremolite, calcite, schreyerite, berdesinskiite, V-bearing titanite, ankangite, chromite-coulsonite series spinels.
The name refers to its major cations (Ba, Ti, Si, V).
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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