VS
Name
—
Ca₂Mn²⁺₃(AsO₄)₂(OH)₄·9H₂O
Formula
—
Mineral Species
Entry type
—
Arsenates
Chemical class
—
—
Crystal system
—
3
Mohs hardness
—
2.85
Specific gravity
—
Pale orange
Streak
—
Vitreous on cleavage surfaces; slightly resinous on fracture surfaces
Luster
—
Perfect on {0001}
Cleavage
—
—
Space group
—
—
Structural group
—
Wlk · Approved
IMA
—
1982
Named in
—
Dark red
Typical colors
—
Ca · Mn · As · O · H
Elements
—