VS
Name
—
Cu₉S₅
Formula
—
Mineral Species
Entry type
—
Sulfides
Chemical class
—
Triclinic
Crystal system
—
—
Mohs hardness
—
5.49
Specific gravity
—
—
Streak
—
—
Luster
—
Poor on {100}
Cleavage
—
P2/m
Space group
—
—
Structural group
—
Rox · Approved
IMA
—
1986
Named in
—
Blue-black; in reflected light, white to off-white with a blue tinge. Anisotropism: Very weak. R1 –R2: n.d
Typical colors
—
Cu · S
Elements
—