IMA mineral species

Preobrazhenskite

Mg₃B₁₁O₁₅(OH)₉

Borate mineral.

Preobrazhenskite specimen
Preobrazhenskite.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaMg₃B₁₁O₁₅(OH)₉
ElementsMg, B, O, H
Crystal systemOrthorhombic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolPbz
Nickel–Strunz class6.GB.15

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

🌍 Where it's found

Type locality (where it was first described): Inder Lake, Kazakhstan