VS
Name
—
(Al,Li)₃Al₂(Si,Al)₄O₁₀(OH)₈
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
2.5–3.5
Mohs hardness
—
2.58–2.69
Specific gravity
—
—
Streak
—
Pearly or silky
Luster
—
{001}, perfect
Cleavage
—
Cc
Space group
—
Chlorite, Clay
Structural group
—
Ckt · Grandfathered
IMA
—
1866
Named in
—
White, yellowish green, pink, brown; in thin section, colorless to pale green or pink
Typical colors
—
Al · Li · Si · O · H
Elements
—