VS
Name
—
Bi₃O(AsO₄)₂(OH)
Formula
—
Mineral Species
Entry type
—
Arsenates
Chemical class
—
Triclinic
Crystal system
—
3.5–4.5
Mohs hardness
—
6
Specific gravity
—
White
Streak
—
Subadamantine to adamantine
Luster
—
One, indistinct
Cleavage
—
P-1
Space group
—
—
Structural group
—
Psg · Approved
IMA
—
1981
Named in
—
White to grayish white; colorless in transmitted light
Typical colors
—
Bi · O · As · H
Elements
—