IMA mineral species

Polybasite

[Ag₉CuS₄][(Ag,Cu)₆(Sb,As)₂S₇]

Sulfosalt mineral.

BlackGray

Polybasite specimen
Mineraly.sk - polybazit-per2.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formula[Ag₉CuS₄][(Ag,Cu)₆(Sb,As)₂S₇]
ElementsAg, Cu, S, Sb, As
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolPlb
Nickel–Strunz class2.GB.15

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