VS
Name
—
Cu(Ag,Cu)₃Pb₁₉(Sb,As)₂₂(As)₂S₅₆
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Monoclinic
Crystal system
—
3.5
Mohs hardness
—
5.91
Specific gravity
—
Black
Streak
—
Metallic
Luster
—
Perfect on {hk0}
Cleavage
—
P2_1/n
Space group
—
Madocite
Structural group
—
Srr · Approved
IMA
—
1966
Named in
—
Black; in polished section, white
Typical colors
—
Cu · Ag · Pb · Sb · As · S
Elements
—