IMA mineral species

Bystrite

(Na,K)₇Ca(Al₆Si₆O₂₄)(S₅)Cl

Tectosilicate mineral.

Yellow

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

Properties

Chemical formula(Na,K)₇Ca(Al₆Si₆O₂₄)(S₅)Cl
ElementsNa, K, Ca, Al, Si, O, S, Cl
Crystal systemTrigonal
Mohs hardness—
Density—
Streak—
Color—
IMA symbolBys
Nickel–Strunz class9.FB.05

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

🌍 Where it's found

Type locality (where it was first described): minerals of Slyudyanka, Russia