VS
Name
—
CuCo₂S₄
Formula
—
Mineral Species
Entry type
—
Sulfides
Chemical class
—
Cubic
Crystal system
—
4.5–5.5
Mohs hardness
—
4.5–4.8
Specific gravity
—
—
Streak
—
Metallic. R: (400) 41.4, (420) 41.5, (440) 41.6, (460) 41.8, (480) 42.0, (500) 42.3, (520) 42.6, (540) 42.9
Luster
—
{001}, imperfect
Cleavage
—
Fd3m
Space group
—
Spinel
Structural group
—
Cli · Grandfathered
IMA
—
1852
Named in
—
Pale gray to steel-gray, tarnishing easily to copper-red or violet-gray
Typical colors
—
Cu · Co · S
Elements
—