VS
Name
—
Ni₃(Bi,Pb)₂S₂
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Orthorhombic
Crystal system
—
3
Mohs hardness
—
8.5
Specific gravity
—
Black, shining
Streak
—
Metallic
Luster
—
{001}, perfect; parting on {111}
Cleavage
—
Pmam
Space group
—
—
Structural group
—
Prk · Grandfathered
IMA
—
1937
Named in
—
Bright bronze, tarnishing darker and duller; pale cream in polished section
Typical colors
—
Ni · Bi · Pb · S
Elements
—