Na.44K.56MgF3
Chakhmouradian A R, Ross K, Mitchell R H, Swainson I
Physics and Chemistry of Minerals 28 (2001) 277-284
The crystal chemistry of synthetic potassium-bearing neighborite, (Na1-xKx)MgF3
Sample x = .56
_database_code_amcsd 0008545
3.9494 3.9492 3.9492 90 90 90 Pm3m
atom     x     y   z occ
Na      .5    .5  .5 .44
K       .5    .5  .5 .56
Mg       0     0   0
F       .5     0   0