General Information:
Chemical Formula:
(Fe++,Mn)3(PO4)2·3(H2O)
Composition:
(Molecular Weight = 410.85 gm)
Manganese 10.03 % Mn
Iron 30.58 % Fe
Phosphorus 15.08 % P
Hydrogen 1.47 % H
Oxygen 42.84 % O
Empirical Formula:
3(Fe2+0.75)3(Mn2+0.25)(PO4)2·3(H2O)
IMA Status:
Approved IMA 1976
Physical Properties:
Cleavage:
[010] Indistinct
Color:
colorless, light green, dark reddish brown, or reddish brown.
Density:
3.29
Diaphaniety:
Transparent to Translucent
Hardness:
3-3.5 - Calcite-Copper Penny
Luster:
Vitreous - Resinous
Streak:
white
More details...