VS
Name
—
CaMn²⁺(AsO₃OH)₂·2H₂O
Formula
—
Mineral Species
Entry type
—
Arsenates
Chemical class
—
Triclinic
Crystal system
—
3.5–4
Mohs hardness
—
3.05
Specific gravity
—
—
Streak
—
—
Luster
—
On {010}, perfect; on {100}, easy; on {101}, imperfect and difficult
Cleavage
—
P-1
Space group
—
Fluckite
Structural group
—
Fck · Approved
IMA
—
1978
Named in
—
Colorless, very pale pink to dark pink with increasing cobalt content
Typical colors
—
Ca · Mn · As · O · H
Elements
—