Ag[(UO2)(AsO4)](H2O)3 Locock A J, Burns P C, Duke M J M, Flynn T M The Canadian Mineralogist 42 (2004) 973-996 Monovalent cations in structures of the meta-autunite group Sample: AgUAs 7.0901 7.0901 17.0453 90 90 90 *P4/ncc .25 -.25 0 atom x y z occ Uiso U .25 .25 .0560 .014 As .75 .25 0 .016 O1 .25 .25 .1595 .025 O2 .25 .25 .9525 .027 O3 .6990 .0680 .4409 .023 O4 .1557 .0111 .3159 .767 .064 Ag4 .1557 .0111 .3159 .233 .064