Arsenuranylite

General Information:
 Chemical Formula:
Ca(UO2)4(AsO4)2(OH)4·6(H2O)
 Composition:
(Molecular Weight = 1,574.15 gm)
Calcium 2.55 % Ca
Uranium 60.48 % U 
Arsenic 9.52 % As
Hydrogen 1.02 % H 
Oxygen 26.43 % O 
 Empirical Formula:
Ca(UO2)4(AsO4)2(OH)4·6(H2O)
 Environment:
Oxidation zone of As-containing sulfide deposits.
 Locality:
Russia.
 Name Origin:
Named for its relationship to phosphuranylite as the end-member.
Physical Properties:
 Cleavage:
[001] Perfect
 Color:
orange or yellow.
 Density:
4.25
 Diaphaniety:
Translucent
 Habits:
Scaly - Morphology like fish scales., ,
 Hardness:
2.5 - Finger Nail
 Streak:
light yellow
More details...