VS
Name
—
Pb₂₁.₇Sn₉.₃Fe₄.₀Sb₈.₁S₅₆.₉
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Triclinic
Crystal system
—
2.5–3
Mohs hardness
—
8.98
Specific gravity
—
Grayish black
Streak
—
Metallic. Anisotropism: Weak. R1-R2: (400) 38.2-39.4, (420) 37.9-39.2, (440) 37.6-39.0, (460) 37.3-38.7
Luster
—
{010}, perfect
Cleavage
—
C-1
Space group
—
Cylindrite
Structural group
—
Fke · Grandfathered
IMA
—
1893
Named in
—
Grayish black
Typical colors
—
Pb · Sn · Fe · Sb · S
Elements
—