VS
Name
—
(H₃O)(UO₂)(AsO₄)·3H₂O
Formula
—
Mineral Species
Entry type
—
Arsenates
Chemical class
—
—
Crystal system
—
2–3
Mohs hardness
—
3.3
Specific gravity
—
—
Streak
—
Vitreous, pearly on {001} cleavage
Luster
—
On {001}, perfect; on {100}, good; on {011}, probable
Cleavage
—
—
Space group
—
Natroautunite
Structural group
—
Tge · Grandfathered
IMA
—
1871
Named in
—
Lemon-yellow
Typical colors
—
H · O · U · As
Elements
—