IMA mineral species

Nobleite

CaB₆O₉(OH)₂·3H₂O

Phylloborate mineral.

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

Properties

Chemical formulaCaB₆O₉(OH)₂·3H₂O
ElementsCa, B, O, H
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolNob
Nickel–Strunz class6.FC.05

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

🌍 Where it's found

Type locality (where it was first described): Furnace Creek district, United States