VS
Name
—
PbAl₃(PO₄)(PO₃OH)(OH)₆
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Hexagonal
Crystal system
—
4.5–5
Mohs hardness
—
4.01
Specific gravity
—
White
Streak
—
Vitreous, resinous to dull
Luster
—
—
Cleavage
—
R-3m
Space group
—
Alunite-crandallite
Structural group
—
Pbg · Approved
IMA
—
1819
Named in
—
Grayish white, grayish blue, yellowish gray, yellowish brown, green, pale blue
Typical colors
—
Pb · Al · P · O · H
Elements
—