Rb[(UO2)(PO4)](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: RbUP _database_code_amcsd 0005947 7.0106 7.0106 17.9772 90 90 90 *P4/ncc .25 -.25 0 atom x y z occ Uiso U .25 .25 .0481 .016 P .75 .25 0 .019 O1 .25 .25 .1468 .029 O2 .25 .25 .9487 .029 O3 .7270 .0756 .4492 .026 O4 .1738 .9769 .3157 .813 .055 Rb4 .1738 .9769 .3157 .187 .055