VS
Name
—
Ca(PO₃OH)·2H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Monoclinic
Crystal system
—
2.5
Mohs hardness
—
2.328
Specific gravity
—
—
Streak
—
Vitreous, pearly on cleavages
Luster
—
On {010} and {001}, perfect
Cleavage
—
Ia
Space group
—
Gypsum
Structural group
—
Bsh · Grandfathered
IMA
—
1865
Named in
—
Colorless to pale yellow, ivory-yellow; colorless in transmitted light
Typical colors
—
Ca · P · O · H
Elements
—