General Information:
Chemical Formula:(Mn,Mg)9Fe+++3(PO4)8(OH)3·9(H2O)
Composition:(Molecular Weight = 1,565.99 gm)Magnesium 3.49 %
MgManganese 23.68 %
MnIron 10.70 %
FePhosphorus 15.82 %
P Hydrogen 1.35 %
H Oxygen 44.95 %
O Empirical Formula: 9(Mn2+0.75)9(Mg0.25)Fe2+3(PO4)8(OH)3·9(H2O)
IMA Status:Approved IMA 1976
Physical Properties: Cleavage:[???] Indistinct
Color:brown.
Density:3.026
Hardness:3-3.5 - Calcite-Copper Penny
Luminescence:Non-fluorescent.
Streak:light brown
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