VS
Name
—
Pb₉Sb₈S₂₁
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Monoclinic
Crystal system
—
2.5
Mohs hardness
—
6.03
Specific gravity
—
Black
Streak
—
Metallic, tarnishes to dull
Luster
—
Perfect on {112}
Cleavage
—
C2/c
Space group
—
—
Structural group
—
Ssy · Grandfathered
IMA
—
1881
Named in
—
Gray to black; in polished section, white with a pale green tint
Typical colors
—
Pb · Sb · S
Elements
—