VS
Name
—
Cu₈AgBi₁₃S₂₄
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Monoclinic
Crystal system
—
—
Mohs hardness
—
6.36
Specific gravity
—
—
Streak
—
Metallic. Anisotropism: Distinct. R1 –R2: (400) 31.8–35.2, (420) 32.4–35.8, (440) 33.1–36.4, (460) 34.4–37.6
Luster
—
—
Cleavage
—
C2/m
Space group
—
—
Structural group
—
Cbit · Grandfathered
IMA
—
1884
Named in
—
Gray, commonly tarnished to bluish
Typical colors
—
Cu · Ag · Bi · S
Elements
—