IMA mineral species

Tobelite

(NH₄,K)Al₂(AlSi₃O₁₀)(OH)₂

True mica, phyllosilicate mineral.

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

Properties

Chemical formula(NH₄,K)Al₂(AlSi₃O₁₀)(OH)₂
ElementsN, H, K, Al, Si, O
Crystal system—
Mohs hardness—
Density—
Streak—
Color—
IMA symbolTbl
Nickel–Strunz class9.EC.15

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