data_global
_chemical_name_mineral 'Neighborite'
loop_
_publ_author_name
'Chen J'
'Liu H'
'Martin C D'
'Parise J B'
'Weidner D J'
_journal_name_full 'American Mineralogist'
_journal_volume 90 
_journal_year 2005
_journal_page_first 1534
_journal_page_last 1539
_publ_section_title
;
 Crystal chemistry of NaMgF3 perovskite and high pressure and temperature
 Sample: P = 4 GPa, T = 600 C
;
_database_code_amcsd 0003927
_chemical_formula_sum 'Na Mg F3'
_cell_length_a 5.3678
_cell_length_b 5.4440
_cell_length_c 7.6587
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 223.805
_exptl_crystal_density_diffrn      3.095
_symmetry_space_group_name_H-M 'P b n m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,y,1/2-z'
  '-x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2-z'
  '1/2-x,1/2+y,z'
  '1/2+x,1/2-y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Na   0.99300   0.02960   0.25000   0.05100
Mg   0.00000   0.50000   0.00000   0.02100
F1   0.07880   0.47830   0.25000   0.03600
F2   0.70170   0.29700   0.04080   0.03500