IMA mineral species

Pickeringite

MgAl₂(SO₄)₄·22H₂O

Hydrous sulfate mineral.

RedYellowGreenWhite & Clear

Pickeringite specimen
Pickeringite-87353.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaMgAl₂(SO₄)₄·22H₂O
ElementsMg, Al, S, O, H
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolPkg
Nickel–Strunz class7.CB.85

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