VS
Name
—
Mn³⁺(PO₄)
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Orthorhombic
Crystal system
—
4–4.5
Mohs hardness
—
3.2–3.4
Specific gravity
—
Pale purple to pale red
Streak
—
Satiny on fresh fractures
Luster
—
{100}, good; {010}, imperfect; surfaces may be curved or crinkled
Cleavage
—
Pbnm
Space group
—
Olivine
Structural group
—
Pur · Grandfathered
IMA
—
1905
Named in
—
Reddish purple to deep rose-red; commonly surficially dark brown to brownish black from alteration
Typical colors
—
Mn · P · O
Elements
—