IMA mineral species

Alum-(K)

KAl(SO₄)₂·12H₂O

Sulfate mineral.

Alum-(K) specimen — Alum-(K)-180767.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formula	KAl(SO₄)₂·12H₂O
Elements	K, Al, S, O, H
Crystal system	Cubic
Mohs hardness	—
Density	—
Streak	—
Color	—
IMA symbol	Aum-K
Nickel–Strunz class	7.CC.20

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

Learn more

Alum-(K) on Mindat.org
Wikipedia article
Wikidata item Q4737323 (source of this page's data – you can correct it there)