Neighborite
Zhao Y S, Parise J B, Wang Y, Kusaba K, Vaughan M T, Weidner D J,
Kikegawa T, Chen J, Shimomura O
American Mineralogist 79 (1994) 615-621
High-pressure crystal chemistry of neighborite, NaMgF3: an angle-dispersive
diffraction study using monochromatic synchrotron X-radiation
P = room pressure following decompression
_database_code_amcsd 0001666
5.3609 5.4828 7.667 90 90 90 Pbnm
atom     x     y     z Uiso
Na   .9860 .0422   .25 .041
Mg       0    .5     0 .031
F1   .0912 .4711   .25 .035
F2   .7052 .2943 .0455 .027