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 = 4.9 GPa
_database_code_amcsd 0001665
5.2386 5.3796 7.5052 90 90 90 Pbnm
atom     x     y     z Uiso
Na   .9824 .0473   .25 .046
Mg       0    .5     0 .034
F1    .097  .469   .25 .040
F2   .7006 .2970 .0498 .031