General Information:
Chemical Formula:
Mn++Fe+++2(PO4)2(OH)2·8(H2O)
Composition:
(Molecular Weight = 534.71 gm)
Manganese 10.27 % Mn
Iron 20.89 % Fe
Phosphorus 11.59 % P
Hydrogen 3.39 % H
Oxygen 53.86 % O
Empirical Formula:
Mn2+Fe3+2(PO4)2(OH)2·8(H2O)
Physical Properties:
Cleavage:
[010] Perfect
Color:
yellow orange, honey brown, or light brown.
Density:
2.44 - 2.49, Average = 2.46
Diaphaniety:
Transparent to Translucent
Hardness:
3 - Calcite
Luster:
Vitreous (Glassy)
Streak:
white
More details...