IMA mineral species

Kalborsite

K₆Al₄BSi₆O₂₀(OH)₄Cl

Zeolite mineral.

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

Properties

Chemical formulaK₆Al₄BSi₆O₂₀(OH)₄Cl
ElementsK, Al, B, Si, O, H, Cl
Crystal systemTetragonal
Mohs hardness—
Density—
Streak—
Color—
IMA symbolKbs
Nickel–Strunz class9.GA.15

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

🌍 Where it's found

Type locality (where it was first described): Apatitovyi tsirk, Russia