VS
Name
—
NaAl₃(PO₄)₂(OH)₄·2H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Tetragonal
Crystal system
—
5
Mohs hardness
—
2.81–2.87
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
On {001}, perfect
Cleavage
—
P4_12_12
Space group
—
Wardite
Structural group
—
Wd · Grandfathered
IMA
—
1896
Named in
—
White, colorless, pale green, blue-green, yellow-green, pale yellow, brown; colorless in transmitted light
Typical colors
—
Na · Al · P · O · H
Elements
—