VS
Name
—
K₁₀[Si₂₆Al₁₀O₇₂]·30H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
3.5–4
Mohs hardness
—
2.08
Specific gravity
—
White
Streak
—
Vitreous to silky
Luster
—
Poor prismatic
Cleavage
—
P6_3/mmc
Space group
—
Erionite
Structural group
—
Eri-K · Approved
IMA
—
1964
Named in
—
White; colorless in thin section
Typical colors
—
K · Si · Al · O · H
Elements
—