VS
Name
—
Ag₂Pb₁₂₋ₓTlₓ/₂As₁₈₊ₓ/₂S₄₀
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Monoclinic
Crystal system
—
3
Mohs hardness
—
4.99–5.45
Specific gravity
—
Chocolate-brown
Streak
—
Metallic to dull
Luster
—
Perfect on {001}; parting on {010}
Cleavage
—
P2_1/a
Space group
—
Sartorite
Structural group
—
Rat · Grandfathered
IMA
—
1896
Named in
—
Lead-gray, may tarnish to iridescence; grayish white in reflected light with deep red internal reflections
Typical colors
—
Ag · Pb · Tl · As · S
Elements
—