VS
Name
—
Pb₃Cu₃Bi₇S₁₅
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Orthorhombic
Crystal system
—
3–3.5
Mohs hardness
—
7.01
Specific gravity
—
Black
Streak
—
Metallic. R1 –R2: (400) 42.3–46.0, (420) 42.2–45.8, (440) 42.1–45.6, (460) 42.0–45.4, (480) 41.8–45.3, (500) 41.6–45.2
Luster
—
Good on {100} and {010}; also on {230}
Cleavage
—
Pbnm
Space group
—
Meneghinite
Structural group
—
Lsm · Approved
IMA
—
1924
Named in
—
Lead-gray
Typical colors
—
Pb · Cu · Bi · S
Elements
—