Umohoite

General Information:
 Chemical Formula:
(UO2)MoO4·4(H2O)
 Composition:
(Molecular Weight = 502.03 gm)
Uranium 47.41 % U 
Molybdenum 19.11 % Mo
Hydrogen 1.61 % H 
Oxygen 31.87 % O 
 Empirical Formula:
(UO2)(MoO4)·4(H2O)
Physical Properties:
 Cleavage:
None
 Color:
bluish black, dark green, or black.
 Density:
4.55 - 4.93, Average = 4.74
 Diaphaniety:
Opaque
 Hardness:
2 - Gypsum
 Luster:
Sub Metallic
 Streak:
blue gray
More details...