The francevillite group includes: curienite: Pb(U6+O2)2(V5+O4)2.5H2O finchite: Sr(U6+O2)2(V2O8).5H2O francevillite: Ba(U6+O2)2(V5+O4)2.5H2O fritzscheite: Mn2+(UO2)2(VO4,PO4)2.4H2O Back to Minerals