VS
Name
—
CuSbS₂
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Orthorhombic
Crystal system
—
3–4
Mohs hardness
—
4.95
Specific gravity
—
—
Streak
—
Metallic
Luster
—
Perfect on {010}; less so on {001} and {100}
Cleavage
—
Pnma
Space group
—
Chalcostibite
Structural group
—
Ccsb · Grandfathered
IMA
—
1847
Named in
—
Lead-gray to iron-gray, rarely with a blue or green tarnish
Typical colors
—
Cu · Sb · S
Elements
—