VS
Name
—
Tl₆Pb₃₂As₇₀S₁₄₀
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Monoclinic
Crystal system
—
3–3.5
Mohs hardness
—
5.1
Specific gravity
—
Dark brown
Streak
—
Metallic. Anisotropism: Moderate to weak in brown-violet and deep green tints. Bireflectance: Weak
Luster
—
Good on {100}
Cleavage
—
P2_1/c
Space group
—
Sartorite
Structural group
—
Esat · Approved
IMA
—
2015
Named in
—
Lead-gray; gray-white in reflected light, deep red internal reflections rare
Typical colors
—
Tl · Pb · As · S
Elements
—