VS
Name
—
CuInS₂
Formula
—
Mineral Species
Entry type
—
Sulfides
Chemical class
—
Tetragonal
Crystal system
—
—
Mohs hardness
—
4.78
Specific gravity
—
—
Streak
—
Metallic. Anisotropism: Very weak. R1 –R2: (400) 25.8–25.0, (420) 25.3–24.8, (440) 24.5–24.5, (460) 23.8–23.9
Luster
—
—
Cleavage
—
I-42d
Space group
—
Chalcopyrite
Structural group
—
Ro · Approved
IMA
—
1962
Named in
—
In polished section, gray with a slight bluish tint
Typical colors
—
Cu · In · S
Elements
—