VS
Name
—
Cu₆As₄S₉
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Triclinic
Crystal system
—
4
Mohs hardness
—
5.2
Specific gravity
—
Gray-black
Streak
—
Metallic. R1-R2: n.d
Luster
—
—
Cleavage
—
P1
Space group
—
—
Structural group
—
Sin · Approved
IMA
—
1964
Named in
—
Steel-gray
Typical colors
—
Cu · As · S
Elements
—