VS
Name
—
Th₀.₇₅Al₃(PO₄)₂(OH)₆
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Hexagonal
Crystal system
—
—
Mohs hardness
—
3.38–3.44
Specific gravity
—
—
Streak
—
—
Luster
—
—
Cleavage
—
R-3m
Space group
—
Alunite-crandallite
Structural group
—
Eyl · Approved
IMA
—
1969
Named in
—
White to cream-white; colorless in transmitted light
Typical colors
—
Th · Al · P · O · H
Elements
—