Arsenuranylite

General Information: Chemical Formula:Ca(UO2)4(AsO4)2(OH)4·6(H2O) Composition:(Molecular Weight = 1,574.15 gm)Calcium 2.55 % CaUranium 60.48 % U Arsenic 9.52 % AsHydrogen 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 yellowMore details...

Ca( O2)4(AsO4)2(OH)4 6(H2O)