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 = 800 C
_database_code_amcsd 0003929
5.4162 5.4629 7.7092 90 90 90 Pbnm
atom     x     y     z Uiso
Na   .9980 .0242   .25 .064
Mg       0    .5     0 .025
F1   .0607 .4914   .25 .058
F2   .7028 .2884 .0407 .048