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 = 400 C
_database_code_amcsd 0003926
5.3350 5.4352 7.6227 90 90 90 Pbnm
atom     x     y     z Uiso
Na   .9893 .0377   .25 .038
Mg       0    .5     0 .012
F1   .0812 .4732   .25 .024
F2   .7000 .2952 .0461 .023