VS
Name
—
Mn²⁺Mn²⁺₂(PO₄)₂
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Monoclinic
Crystal system
—
5
Mohs hardness
—
3.6–3.7
Specific gravity
—
Pale pink or brown
Streak
—
Vitreous
Luster
—
Good on {010}; fair on {100}
Cleavage
—
P2_1/c
Space group
—
Graftonite
Structural group
—
Beu · Approved
IMA
—
1968
Named in
—
Pale reddish brown
Typical colors
—
Mn · P · O
Elements
—