data_stdin
_audit_creation_method 'critic2-4f1eba8'
_cell_length_a         8.8590000000
_cell_length_b         8.8590000000
_cell_length_c         5.0380000000
_cell_angle_alpha        90.0000
_cell_angle_beta        90.0000
_cell_angle_gamma       120.0000
_cell_volume           342.419271
_space_group_crystal_system trigonal
_space_group_IT_number 150
_space_group_name_H-M_alt 'P321'
_space_group_name_Hall 'P 3 2"'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-y,x-y,z'
  '-x+y,-x,z'
  'y,x,-z'
  'x-y,-y,-z'
  '-x,-x+y,-z'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Na     Na     0.37900000000000     0.37900000000000     0.00000000000000
Na     Na     0.71430000000000     0.71430000000000     0.50000000000000
Si     Si     0.00000000000000     0.00000000000000     0.00000000000000
Si     Si     0.33333333000000     0.66666667000000     0.50620000000000
F      F      0.08700000000000     0.90800000000000     0.80990000000000
F      F      0.44420000000000     0.59900000000000     0.70070000000000
F      F      0.22990000000000     0.74000000000000     0.30980000000000
