VS
Name
—
Pb₄Sb₆S₁₃
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Monoclinic
Crystal system
—
2.5–3
Mohs hardness
—
5.64–5.75
Specific gravity
—
—
Streak
—
Metallic. Anisotropism: Strong; in blue-gray, cream-white, and brown-gray. R1 –R2: n.d
Luster
—
—
Cleavage
—
I2/m
Space group
—
—
Structural group
—
Rob · Grandfathered
IMA
—
1952
Named in
—
Bluish lead-gray
Typical colors
—
Pb · Sb · S
Elements
—