Images
Formula: Ba2(Ti4+V3+)(As2O5)2OF
Diarsenite of barium,
titanium and vanadium
Crystal System: Tetragonal
Specific gravity: 4.863 calculated
Streak: Brownish
Colour: Brown
Bianchiniite is a relatively new mineral, approved in 2019 and to date (June 2026) reported only from the type
locality.
Localities
At the type locality, the Sant'Olga tunnel, Monte Arsiccio Mine, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany,
bianchiniite was found as brown tabular crystals, up to 1 mm across, with a vitreous lustre
(MM 85.3.354-363).
Bianchiniite from the Sant'Olga tunnel -
Image
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