Laueite

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
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