VS
Name
—
Bi₄O₄(UO₂)(AsO₄)₂·2H₂O
Formula
—
Mineral Species
Entry type
—
Arsenates
Chemical class
—
Triclinic
Crystal system
—
3.5
Mohs hardness
—
6.59
Specific gravity
—
Pale brownish yellow
Streak
—
Adamantine to greasy
Luster
—
On {010}, perfect
Cleavage
—
P-1
Space group
—
—
Structural group
—
Wpg · Grandfathered
IMA
—
1871
Named in
—
Wax-yellow, straw-yellow, honey-yellow; pale yellow to colorless in transmitted light, commonly zoned
Typical colors
—
Bi · O · U · As · H
Elements
—