VS
Name
—
K₆(Si₁₀Al₆)O₃₂·12H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
4–4.5
Mohs hardness
—
2.2
Specific gravity
—
White
Streak
—
Vitreous
Luster
—
{010}, {100}, distinct
Cleavage
—
P2_1/m
Space group
—
Harmotome
Structural group
—
Php-K · Approved
IMA
—
1997
Named in
—
Colorless, white, reddish, yellowish; colorless in thin section
Typical colors
—
K · Si · Al · O · H
Elements
—