VS
Name
—
2[(Fe,Cu)S]·1.53[(Mg,Al)(OH)₂]
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Hexagonal
Crystal system
—
1
Mohs hardness
—
3.14
Specific gravity
—
—
Streak
—
Metallic to submetallic
Luster
—
On {0001}, excellent
Cleavage
—
R-3m
Space group
—
Valleriite
Structural group
—
Val · Grandfathered
IMA
—
1870
Named in
—
Bronze-yellow, resembling pyrrhotite
Typical colors
—
Fe · Cu · S · Mg · Al · O · H
Elements
—