VS
Name
—
Al₄(PO₄)₃(OH)₃·9H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Orthorhombic
Crystal system
—
2–2.5
Mohs hardness
—
2.3
Specific gravity
—
—
Streak
—
Pearly on cleavages
Luster
—
On {001}, micaceous; imperfect on {010}
Cleavage
—
Pmam
Space group
—
—
Structural group
—
Vts · Approved
IMA
—
1986
Named in
—
White
Typical colors
—
Al · P · O · H
Elements
—