VS
Name
—
(Al, )(UO₂)₂F(PO₄)₂·20H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Orthorhombic
Crystal system
—
2–2.5
Mohs hardness
—
2.5
Specific gravity
—
—
Streak
—
—
Luster
—
On {001}, perfect; on {100} and {010}, good
Cleavage
—
Pnn2
Space group
—
—
Structural group
—
Ush · Grandfathered
IMA
—
1915
Named in
—
Yellow to pale green
Typical colors
—
Al · U · O · F · P · H
Elements
—