IMA mineral species

Alloclasite

CoAsS

Sulfide mineral.

Gray

Properties

Chemical formulaCoAsS
ElementsCo, As, S
Crystal systemMonoclinic
Mohs hardness—
Density6.259 g/cm³
Streak—
Color—
IMA symbolAcl
Nickel–Strunz class2.EB.10b

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