VS
Name
—
Pb₁₀Cu₂Sb₁₆S₃₅
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Monoclinic
Crystal system
—
—
Mohs hardness
—
5.48
Specific gravity
—
Black
Streak
—
Metallic. R1 –R2: (400) 39.3–44.5, (420) 39.0–44.3, (440) 38.8–44.0, (460) 38.5–43.7, (480) 38.2–43.6, (500) 38.1–43.8
Luster
—
Distinct on {010}
Cleavage
—
—
Space group
—
Kobellite
Structural group
—
Tti · Approved
IMA
—
1967
Named in
—
Lead-gray
Typical colors
—
Pb · Cu · Sb · S
Elements
—