Isolueshite Krivovichev S V, Chakhmouradian A R, Mitchell R H, Filatov S K, Chukanov N V European Journal of Mineralogy 12 (2000) 597-607 Crystal structure of isolueshite and its synthetic compositional analogue Sample: isolueshite _database_code_amcsd 0006836 3.909 3.909 3.909 90 90 90 Pm-3m atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Na 0 0 0 .75 .0182 .0182 .0182 .0182 0 0 0 La 0 0 0 .19 .0182 .0182 .0182 .0182 0 0 0 Ca 0 0 0 .06 .0182 .0182 .0182 .0182 0 0 0 Nb 1/2 1/2 1/2 .5 .0134 .0134 .0134 .0134 0 0 0 Ti 1/2 1/2 1/2 .5 .0134 .0134 .0134 .0134 0 0 0 O .579 0 1/2 .25 .029 .025 .012 .050 0 0 0