B2 Ca O10 U2 Gasperin M Acta Crystallographica C43 (1987) 1247-1250 Synthese et structure du borouranate de calcium: Ca B2 U2 O10. _cod_database_code 1001347 _database_code_amcsd 0010039 16.512 8.169 6.582 90 96.97 90 C2 atom x y z occ U1 0 0 0 U2 0 .5001 0 U3 .12015 .0005 .55893 Ca1 .3370 -.0041 .4172 B1 .1966 -.0078 .0767 B2 .3032 .0004 .8386 O1 .1891 -.0044 .2788 O2 .4503 -.0129 .2290 O3 .2778 .0019 .0316 O4 .8673 .0067 .0725 O5 .3813 .0166 .8072 O6 .6076 .2768 .5421 O7 .0095 .0293 .3109 O8 .2507 .0399 .6747 O9 .1382 .217 .5818 O10 .0108 .2267 .0553 .5 O11 -.0107 .7694 -.0372 .5