Compare Minerals
Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.
Name
—
(Pt,Pb)Bi₃(S,Se)₄₋ₓ (x = 0.4-0-8)
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Cubic
Crystal system
—
3.5
Mohs hardness
—
7.75
Specific gravity
—
—
Streak
—
Metallic. R: (400) 53.7, (420) 53.8, (440) 53.1, (460) 52.4, (480) 51.6, (500) 50.8, (520) 50.5, (540) 49.9
Luster
—
Perfect on {001}
Cleavage
—
Fm3m
Space group
—
Rocksalt
Structural group
—
Cea · Approved
IMA
—
1994
Named in
—
Pale gray in reflected light, with a slight bluish tint in oil
Typical colors
—
Pt · Pb · Bi · S · Se
Elements
—