VS
Name
—
Cu¹⁺₂Cu²⁺₂O₃
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Tetragonal
Crystal system
—
4.5
Mohs hardness
—
6.04–6.11
Specific gravity
—
Brownish black
Streak
—
Brilliant metallic to adamantine
Luster
—
—
Cleavage
—
I4_1/amd
Space group
—
—
Structural group
—
Pml · Grandfathered
IMA
—
1891
Named in
—
Black to purplish black, pitch-black on fractures; white with pinkish brown tint in reflected light
Typical colors
—
Cu · O
Elements
—