VS
Name
—
KV³⁺₂(Si₃Al)O₁₀(OH)₂
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
—
Crystal system
—
—
Mohs hardness
—
2.92–2.94
Specific gravity
—
—
Streak
—
Pearly
Luster
—
Perfect on {001}
Cleavage
—
—
Space group
—
Mica
Structural group
—
Rcl · Approved
IMA
—
1876
Named in
—
Dark clove-brown, greenish brown to dark greenish brown
Typical colors
—
K · V · Si · Al · O · H
Elements
—