VS
Name
—
Al₃(OH)₄(H₂O)₃(PO₄)(PO₃OH)·H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Triclinic
Crystal system
—
1.5
Mohs hardness
—
2.39
Specific gravity
—
White
Streak
—
Pearly; dull on weathered surfaces
Luster
—
Perfect on {001}, good on {010} and (11 0}
Cleavage
—
P-1
Space group
—
—
Structural group
—
Afm · Approved
IMA
—
2005
Named in
—
Colorless to white; on weathered surfaces, white to cream to yellowish
Typical colors
—
Al · O · H · P
Elements
—