VS
Name
—
NiSbS
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Cubic
Crystal system
—
5–5.5
Mohs hardness
—
6.65
Specific gravity
—
Grayish black
Streak
—
Metallic. Anisotropism: Individuals may be weakly anisotropic revealing a fine lamellar structure. R: (400) 52.0
Luster
—
Perfect on {001}
Cleavage
—
P2_13
Space group
—
Ullmannite
Structural group
—
Ull · Grandfathered
IMA
—
1843
Named in
—
Steel-gray to silver-white; white in reflected light
Typical colors
—
Ni · Sb · S
Elements
—