F31 Na7 Zr6 Burns J, Ellison R, Levy H Acta Crystallographica B24 (1968) 230-237 The crystal structure of Na7 Zr6 F31 _cod_database_code 1008081 _database_code_amcsd 0016023 13.807 13.807 9.429 90 90 120 R-3 atom x y z occ Na1 .0792 .3040 .4926 Na2 0 0 .5 Zr1 .18955 .05153 .17903 F1 .3558 .1114 .0917 F2 .1835 .0554 .3944 F3 .2735 .3706 .4243 F4 .2088 .1585 .0017 F5 .2432 .5417 .4416 F6 0 0 .0526 .5