VS
Name
—
Mn²⁺₉Fe³⁺₃(PO₄)₈(OH)₃·9H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Orthorhombic
Crystal system
—
3–3.5
Mohs hardness
—
3.026
Specific gravity
—
—
Streak
—
—
Luster
—
Good on {100}; poor ⊥ {100}
Cleavage
—
Pbna
Space group
—
Reddingite
Structural group
—
Lds · Approved
IMA
—
1930
Named in
—
Yellowish brown; yellowish brown in transmitted light
Typical colors
—
Mn · Fe · P · O · H
Elements
—