VS
Name
—
Mn²⁺₅(AsO₄)₂(OH)₄·4H₂O
Formula
—
Mineral Species
Entry type
—
Arsenates
Chemical class
—
Monoclinic
Crystal system
—
3.5
Mohs hardness
—
3.19–3.35
Specific gravity
—
—
Streak
—
Dull
Luster
—
On {010}, perfect; a second, perpendicular to the first
Cleavage
—
P2_1/c
Space group
—
Akrochordite
Structural group
—
Akr · Grandfathered
IMA
—
1922
Named in
—
Yellowish red-brown, pale to dark brown, pale pink, colorless
Typical colors
—
Mn · As · O · H
Elements
—