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 = 175 K _database_code_amcsd 0009118 5.3416 5.4826 7.6475 90 90 90 Pbnm atom x y z Na .9878 .0469 .25 Mg 0 .5 0 F1 .0911 .4709 .25 F2 .7017 .2956 .0478