IMA mineral species

Karasugite

SrCa[Al(F,OH)₇]

Aluminofluoride mineral.

Properties

Chemical formulaSrCa[Al(F,OH)₇]
ElementsSr, Ca, Al, F, O, H
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolKrg
Nickel–Strunz class3.CB.30

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

🌍 Where it's found

Type locality (where it was first described): Karasug REE-Sr-Ba-Fe-fluorite deposit, Russia