VS
Name
—
Cu₃BiS₃
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Orthorhombic
Crystal system
—
2–3
Mohs hardness
—
6.01
Specific gravity
—
Black
Streak
—
Metallic. Anisotropism: Weak, shades of dark brown. R1 –R2: (400) 35.0–36.9, (420) 34.1–35.8, (440) 33.2–34.7
Luster
—
—
Cleavage
—
P2_12_12_1
Space group
—
—
Structural group
—
Wtc · Grandfathered
IMA
—
1853
Named in
—
Steel-gray to tin-white, tarnishing pale lead-gray or brass-yellow
Typical colors
—
Cu · Bi · S
Elements
—