IMA mineral species

Polylithionite

KLi₂AlSi₄O₁₀F₂

True mica, phyllosilicate mineral.

Polylithionite specimen
Polylithionite-Serandite-20566.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaKLi₂AlSi₄O₁₀F₂
ElementsK, Li, Al, Si, O, F
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolPln
Nickel–Strunz class9.EC.20

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

🌍 Where it's found

Type locality (where it was first described): Kangerluarsuk fjord, Ilímaussaq, Greenland