Laueite

General Information: Chemical Formula:Mn++Fe+++2(PO4)2(OH)2·8(H2O) Composition:(Molecular Weight = 534.71 gm)Manganese 10.27 % MnIron 20.89 % FePhosphorus 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:whiteMore details...

MnFe2(PO4)2(OH)2 8(H2O)