data_ZnFeAg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.92
_cell_length_b   6.75
_cell_length_c   2.66
_cell_angle_alpha   82.26
_cell_angle_beta   75.3
_cell_angle_gamma   22.44
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnFeAg
_chemical_formula_sum   'Zn1 Fe1 Ag1'
_cell_volume   44.23
_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
  Zn  Zn2  1  0.56  0.16  0.85  1.0
  Fe  Fe1  1  0.56  0.16  0.3  1.0
  Ag  Ag0  1  0.56  0.16  0.13  1.0

data_ZnFeAg
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.11
_cell_length_b   13.14
_cell_length_c   2.66
_cell_angle_alpha   90.0
_cell_angle_beta   125.76
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   ZnFeAg
_chemical_formula_sum   'Zn2 Fe2 Ag2'
_cell_volume   88.45
_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
  Zn  Zn0  2  0.06  0.5  0.4  1.0
  Fe  Fe1  2  0.06  0.5  0.86  1.0
  Ag  Ag2  2  0.06  0.5  0.68  1.0

Zn Fe Ag
Zn Fe Ag 0 2 o o + 1 2 o o o 