IMA mineral species

Tschermigite

NH₄Al(SO₄)₂·12H₂O

Sulfate mineral.

Tschermigite specimen — Tschermigit (Ammonalaun) - Tschermig, Böhmen.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formula	NH₄Al(SO₄)₂·12H₂O
Elements	N, H, Al, S, O
Crystal system	Cubic
Mohs hardness	1.5
Density	—
Streak	white
Color	—
IMA symbol	Tmi
Nickel–Strunz class	7.CC.20

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

Learn more

Tschermigite on Mindat.org
Wikipedia article
Wikidata item Q417428 (source of this page's data – you can correct it there)