Neighborite
Chen J, Liu H, Martin C D, Parise J B, Weidner D J
American Mineralogist 90 (2005) 1534-1539
Crystal chemistry of NaMgF3 perovskite and high pressure and temperature
Sample: P = 4 GPa, T = 600 C
_database_code_amcsd 0003927
5.3678 5.4440 7.6587 90 90 90 Pbnm
atom     x     y     z Uiso
Na   .9930 .0296   .25 .051
Mg       0    .5     0 .021
F1   .0788 .4783   .25 .036
F2   .7017 .2970 .0408 .035