VS
Name
—
Na₁₆Si₁₆O₂₇(OH)₂₆·28H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
2
Mohs hardness
—
1.94
Specific gravity
—
—
Streak
—
Vitreous to pearly, silky
Luster
—
Perfect on {100}, less perfect on {010}
Cleavage
—
C2
Space group
—
—
Structural group
—
Rev · Approved
IMA
—
1979
Named in
—
Colorless to white
Typical colors
—
Na · Si · O · H
Elements
—