data_NaSrCr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.7
_cell_length_b   6.7
_cell_length_c   6.7
_cell_angle_alpha   144.54
_cell_angle_beta   144.54
_cell_angle_gamma   51.01
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaSrCr
_chemical_formula_sum   'Na1 Sr1 Cr1'
_cell_volume   100.8
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Na  Na1  1  0.0  0.0  0.33  1.0
  Sr  Sr2  1  0.0  0.0  0.9  1.0
  Cr  Cr0  1  0.0  0.0  0.97  1.0

data_NaSrCr
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.77
_cell_length_b   5.77
_cell_length_c   6.7
_cell_angle_alpha   90.0
_cell_angle_beta   115.51
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NaSrCr
_chemical_formula_sum   'Na2 Sr2 Cr2'
_cell_volume   201.6
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Na  Na0  2  0.0  0.0  0.67  1.0
  Sr  Sr1  2  0.0  0.0  0.1  1.0
  Cr  Cr2  2  0.0  0.0  0.03  1.0

Na Sr Cr
Na Sr Cr 0 2 o o - 0 1 o o - 1 2 o o o 