VS
Name
—
NaMnFe³⁺₂(PO₄)₃
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Monoclinic
Crystal system
—
5–5.5
Mohs hardness
—
3.45
Specific gravity
—
Dirty yellow
Streak
—
—
Luster
—
{010}, {110}, and {11 0}, good
Cleavage
—
C2/c
Space group
—
Alluaudite
Structural group
—
Ald · Approved
IMA
—
1848
Named in
—
Dirty yellow to brownish yellow, grayish green; surficially dull greenish black, brownish black, black
Typical colors
—
Na · Mn · Fe · P · O
Elements
—