AM_Neighborite_20 Formula: Na Mg F3 Name: Neighborite Unit cell: 5.3494 5.4846 7.6557 90.0 90.0 90.0 , V=224.61 Space group: PBNM (62)

Mitchell R H , Alexander M , Cranswick L M D , Swainson I P , Physics and Chemistry of Minerals , 34 (2007) p.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 = 225 K