Cs.82B1.09Si1.98O6 Bubnova R S, Stepanov N K, Levin A A, Filatov S K, Paufler P, Meyer D C Solid State Sciences 6 (2004) 629-627 Crystal structure and thermal behaviour of boropollucite CsBSi2O6 _database_code_amcsd 0015521 13.009 13.009 13.009 90 90 90 Ia-3d atom x y z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Cs .125 .125 .125 .814 2.49 .03129 .03129 .03129 .00553 .00553 .00553 B .125 .16169 .41169 .365 1.28 .01800 .01552 .01552 .00189 -.00189 .00304 Si .125 .16169 .41169 .659 1.28 .01800 .01552 .01552 .00189 -.00189 .00304 O .10437 .13369 .71953 2.70 .03824 .03884 .02469 .00694 .00857 .00733