IMA mineral species

Hydroboracite

CaMg[B₃O₄(OH)₃]₂·3H₂O

Inoborate mineral.

White & Clear

Hydroboracite specimen
Hydroboracite-239916.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaCaMg[B₃O₄(OH)₃]₂·3H₂O
ElementsCa, Mg, B, O, H
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolHbo
Nickel–Strunz class6.CB.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