VS
Name
—
[Na₅Ca₂K](Si₆Al₆O₂₄)(SO₄)₂·0.33H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
5.5
Mohs hardness
—
2.42
Specific gravity
—
White
Streak
—
Greasy to silky
Luster
—
Good on {001}
Cleavage
—
R32
Space group
—
Cancrinite
Structural group
—
Kcr · Approved
IMA
—
2009
Named in
—
Colorless to light gray
Typical colors
—
Na · Ca · K · Si · Al · O · S · H
Elements
—