Neighborite 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 studied by neutron diffraction, x = .5 One of two alternative models _database_code_amcsd 0008543 5.566 5.566 3.953 90 90 90 P4/mbm atom x y z occ Biso Na 0 .5 .5 .5 1.1 K 0 .5 .5 .5 1.1 Mg 0 0 0 -.5 F1 0 0 .5 1.97 F2 .2596 .7596 0 1.96