data_CrAg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.66
_cell_length_b   4.66
_cell_length_c   5.44
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrAg
_chemical_formula_sum   'Cr2 Ag2'
_cell_volume   102.29
_cell_formula_units_Z   2
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
  Cr  Cr2  1  0.33  0.35  0.08  1.0
  Cr  Cr3  1  0.0  0.69  0.36  1.0
  Ag  Ag0  1  0.33  0.35  0.36  1.0
  Ag  Ag1  1  0.0  0.69  0.08  1.0

data_CrAg
_symmetry_space_group_name_H-M   P-3m1
_cell_length_a   4.66
_cell_length_b   4.66
_cell_length_c   5.44
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   164
_chemical_formula_structural   CrAg
_chemical_formula_sum   'Cr2 Ag2'
_cell_volume   102.29
_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  '-y, x-y, z'
  4  'y, -x+y, -z'
  5  '-x+y, -x, z'
  6  'x-y, x, -z'
  7  'y, x, -z'
  8  '-y, -x, z'
  9  'x-y, -y, -z'
  10  '-x+y, y, z'
  11  '-x, -x+y, -z'
  12  'x, 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
  Cr  Cr0  2  0.33  0.67  0.14  1.0
  Ag  Ag1  2  0.33  0.67  0.86  1.0

Cr Cr Ag Ag
Cr Cr Ag Ag 0 2 o o o 1 3 o o o 