VS
Name
—
Pb₈Bi₁₀S₂₃
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Monoclinic
Crystal system
—
2
Mohs hardness
—
6.7
Specific gravity
—
—
Streak
—
Metallic. Anisotropism: Strong, from blue to gray. R1 –R2: (400) 49.2–51.3, (420) 49.8–52.4, (440) 50.4–53.5
Luster
—
—
Cleavage
—
P2_1/m
Space group
—
—
Structural group
—
Cnz · Grandfathered
IMA
—
1924
Named in
—
White to silvery gray, tarnishes iridescent
Typical colors
—
Pb · Bi · S
Elements
—