IMA mineral species

Proustite

Ag₃AsS₃

Sulfosalt mineral.

Red

Proustite specimen
Calcite-Proustite-mf16b.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaAg₃AsS₃
ElementsAg, As, S
Crystal systemTrigonal
Mohs hardness—
Density5.394 g/cm³
Streakvermilion
Color—
IMA symbolPrs
Nickel–Strunz class2.GA.05

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