IMA mineral species

Schiavinatoite

(Nb,Ta)(BO₄)

Borate mineral.

White & Clear

Schiavinatoite specimen
Schiavinatoite-260476.jpg · Wikimedia Commons (see file page for author & license)

Properties

🔷 Tetragonal✏️ streak white
Chemical formula(Nb,Ta)(BO₄)
ElementsNb, Ta, B, O
Crystal systemTetragonal
Mohs hardness—
Density—
Streakwhite
Color—
IMA symbolShv
Nickel–Strunz class6.AC.15

“—” means no reliable value in Wikidata yet. Check Mindat for full data.