data_global
_chemical_name_mineral 'Neighborite'
loop_
_publ_author_name
'Mitchell R H'
'Alexander M'
'Cranswick L M D'
'Swainson I P'
_journal_name_full 'Physics and Chemistry of Minerals'
_journal_volume 34 
_journal_year 2007
_journal_page_first 705
_journal_page_last 712
_publ_section_title
;
 A powder neutron diffraction study of the crystal structure of the
 fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K
 Sample: T = 275 K
;
_database_code_amcsd 0009114
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Na Mg F3'
_cell_length_a 5.3580
_cell_length_b 5.4874
_cell_length_c 7.6642
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 225.339
_exptl_crystal_density_diffrn      3.074
_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
Na   0.99120   0.04480   0.25000
Mg   0.00000   0.50000   0.00000
F1   0.08710   0.47270   0.25000
F2   0.70330   0.29580   0.04730