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 = 1000 C, high-T polymorph
_database_code_amcsd 0003931
3.8760 3.8760 3.8760 90 90 90 Pm-3m
atom   x   y   z Uiso
Na     0   0   0 .111
Mg    .5  .5  .5 .046
F     .5  .5   0 .135