Neighborite Mitchell R H, Alexander M, Cranswick L M D, Swainson I P Physics and Chemistry of Minerals 34 (2007) 705-712 A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K Locality: synthetic Sample: T = 125 K _database_code_amcsd 0009120 5.3353 5.4814 7.6405 90 90 90 Pbnm atom x y z Na .9874 .0480 .25 Mg 0 .5 0 F1 .0919 .4705 .25 F2 .7016 .2959 .0481