AM_Neighborite_10 Formula: Na Mg F3 Name: Neighborite Unit cell: 3.876 3.876 3.876 90.0 90.0 90.0 , V=58.23 Space group: PM-3M (221)

Chen J , Liu H , Martin C D , Parise J B , Weidner D J , American Mineralogist , 90 (2005) p.1534-1539, Crystal chemistry of NaMgF3 perovskite and high pressure and temperature, Sample: P = 4 GPa, T = 1000 C, high-T polymorph