Yingjiangite

General Information: Chemical Formula:(K2,Ca)(UO2)7(PO4)4(OH)6·6(H2O) Composition:(Molecular Weight = 2,607.53 gm)Potassium 4.50 % K Calcium 0.38 % CaUranium 63.90 % U Phosphorus 4.75 % P Hydrogen 0.70 % H Oxygen 25.77 % O  Empirical Formula: K3Ca0.25(UO2)7(PO4)4(OH)6·6(H2O) IMA Status:Approved IMAPhysical Properties: Color:yellow or yellow. Density:4.54 Diaphaniety:Transparent to Translucent Hardness:3-4 - Calcite-Fluorite Luster:SubadamantineMore details...

(K,Ca)( O2)3(PO4)2(OH) 4(H2O)