Rb[(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: RbUAs _database_code_amcsd 0005948 7.1904 7.1904 17.643 90 90 90 *P4/n .25 -.25 0 atom x y z occ Uiso U1 .25 .25 .0543 .012 U2 .25 .25 .5513 .012 As1 .25 .75 0 .013 As2 .25 .75 .5 .014 O1 .25 .25 .4504 .024 O2 .25 .25 -.0449 .028 O3 .25 .25 .6520 .022 O4 .25 .25 .1560 .020 O5 .2209 .9336 .0577 .020 O6 .2236 .9353 .5567 .024 O7 .5217 .3446 .3003 .5 .044 Rb7 .5217 .3446 .3003 .5 .044 O8 .1801 .5211 -.1910 .055