VS
Name
—
[Mg₂(K,Na)₂Ca₀.₅](Si₂₉Al₇)O₇₂·18H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Orthorhombic
Crystal system
—
3–3.5
Mohs hardness
—
—
Specific gravity
—
white
Streak
—
vitreous
Luster
—
—
Cleavage
—
Immm
Space group
—
Ferrierite
Structural group
—
Frr-Mg · Approved
IMA
—
1918
Named in
—
White, Colorless, Orange
Typical colors
—
Mg · K · Na · Ca · Si · Al · O · H
Elements
—