Lehnerite

General Information:
 Chemical Formula:
Mn[UO2/PO4]2·8(H2O)
 Composition:
(Molecular Weight = 929.06 gm)
Uranium 51.24 % U 
Manganese 5.91 % Mn
Phosphorus 6.67 % P 
Hydrogen 1.74 % H 
Oxygen 34.44 % O 
 Empirical Formula:
Mn3+(UO2)2(PO4)2·8(H2O)
 IMA Status:
Approved IMA
Physical Properties:
 Cleavage:
[???] Perfect
 Color:
bronze or honey yellow.
 Density:
3.5 - 3.6, Average = 3.55
 Diaphaniety:
Transparent
 Hardness:
2-3 - Gypsum-Calcite
 Luster:
Vitreous - Pearly
 Streak:
white
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