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Formula: NaBF4
Halide, boron-bearing mineral
Crystal System: Orthorhombic
Specific gravity: 2.496 measured, 2.511 calculated
Hardness: 3
Colour: Colourless to white
Solubility: Soluble in water
Environments
Ferruccite occurs as a fumarolic sublimate, associated with
sassolite, fluorborates and fluorsilicates
(HOM).
Localities
At the type locality, Mount Vesuvius, Somma-Vesuvius Complex, Naples, Campania, Italy, ferruccite occurs in
an active volcanic fumarole, associated with sassolite,
malladrite, hieratite and
avogadrite
(Mindat).
Ferruccite from Vesuvius - Image
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