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VS
V
Name
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Na₂Mn(MnFe³⁺)(PO₄)₃
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
—
Crystal system
—
5
Mohs hardness
—
3.5–3.6
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
Good on {100}; distinct on {010}
Cleavage
—
—
Space group
—
Alluaudite
Structural group
—
Vr · Approved
IMA
—
1937
Named in
—
Dull olive-green, brownish on oxidation
Typical colors
—
Na · Mn · Fe · P · O
Elements
—