Ca(UO2)2(PO4)2·10-12H2OTetragonal
Autunite
Ca(UO2)2(PO4)2·10-12H2O
PhosphatesChemical FormulaCa(UO2)2(PO4)2·10-12H2O
Crystal SystemTetragonal
Mohs Hardness2.5
Specific Gravity3.1
ColorYellow, greenish yellow
LusterVitreous to pearly
StreakPale yellow
CleavageOne direction
FractureUneven
Occurrence
Found in oxidized uranium deposits. Fluorescent. Radioactive.