VS
Name
—
Cu²⁺₃Fe³⁺₄(VO₄)₆
Formula
—
Mineral Species
Entry type
—
Vanadates
Chemical class
—
Orthorhombic
Crystal system
—
—
Mohs hardness
—
4.215
Specific gravity
—
Dark gray
Streak
—
Metallic
Luster
—
Good on {001}
Cleavage
—
Pmcn
Space group
—
Lyonsite
Structural group
—
Lyo · Approved
IMA
—
1986
Named in
—
Black; in reflected light, creamy white
Typical colors
—
Cu · Fe · V · O
Elements
—