VS
Name
—
Cu₂Pb₂Bi₄S₉
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Orthorhombic
Crystal system
—
3–4
Mohs hardness
—
6.74
Specific gravity
—
Black
Streak
—
Metallic. R1 –R2: (400) 39.7–43.6, (420) 39.8–43.7, (440) 39.8–43.8, (460) 39.9–44.0, (480) 40.1–44.1, (500) 40.3–44.4
Luster
—
Good on {010}
Cleavage
—
Pbnm
Space group
—
Meneghinite
Structural group
—
Hmr · Grandfathered
IMA
—
1924
Named in
—
Steel-gray with red tint
Typical colors
—
Cu · Pb · Bi · S
Elements
—