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 = 900 C
_database_code_amcsd 0003930
5.4480 5.4677 7.7366 90 90 90 Pbnm
atom     x     y     z Uiso
Na   .9967 .0191   .25 .121
Mg       0    .5     0 .053
F1   .0307 .4788   .25 .580
F2   .7240 .2835 .0295 .077