VS
Name
—
Fe³⁺(PO₄)
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Orthorhombic
Crystal system
—
4–4.5
Mohs hardness
—
3.4
Specific gravity
—
Pale purple
Streak
—
Satiny on fresh surfaces, dull to earthy
Luster
—
Good on {100}; poor on {010}; surfaces may be curved
Cleavage
—
Pbnm
Space group
—
Olivine
Structural group
—
Het · Grandfathered
IMA
—
1826
Named in
—
Deep rose to purple, black
Typical colors
—
Fe · P · O
Elements
—