VS
Name
—
Cu₃AsS₄
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Orthorhombic
Crystal system
—
3
Mohs hardness
—
4.45
Specific gravity
—
Grayish black
Streak
—
Metallic to dull
Luster
—
Perfect on {110}, distinct on {100} and {010}, indistinct on {001}
Cleavage
—
Pnm2_1
Space group
—
Wurtzite, Enargite
Structural group
—
Eng · Grandfathered
IMA
—
1850
Named in
—
Gray, Black
Typical colors
—
Cu · As · S
Elements
—