General Information:
Chemical Formula:(Fe++,Mn++)2(PO4)(OH)
Composition:(Molecular Weight = 223.22 gm)Manganese 12.31 %
MnIron 37.53 %
FePhosphorus 13.88 %
P Hydrogen 0.45 %
H Oxygen 35.84 %
O Empirical Formula: Fe2+1.5Mn2+0.5(PO4)(OH)
Physical Properties: Cleavage:[010] Good, [120] Distinct
Color:greenish, dark brown, or reddish brown.
Density:3.79
Diaphaniety:Transparent to Translucent
Hardness:4.5-5
Luster:Vitreous - Greasy
Streak:white
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