data_ZnNi2Ag
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.91
_cell_length_b   4.91
_cell_length_c   4.91
_cell_angle_alpha   144.47
_cell_angle_beta   128.67
_cell_angle_gamma   63.98
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnNi2Ag
_chemical_formula_sum   'Zn1 Ni2 Ag1'
_cell_volume   53.08
_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  Zn3  1  0.0  0.0  0.0  1.0
  Ni  Ni1  1  0.5  0.0  0.98  1.0
  Ni  Ni2  1  0.0  0.13  0.19  1.0
  Ag  Ag0  1  0.0  0.0  0.16  1.0

data_ZnNi2Ag
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.0
_cell_length_b   4.25
_cell_length_c   4.91
_cell_angle_alpha   115.66
_cell_angle_beta   107.76
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnNi2Ag
_chemical_formula_sum   'Zn1 Ni2 Ag1'
_cell_volume   53.08
_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  Zn0  1  0.0  0.0  0.0  1.0
  Ni  Ni1  1  0.52  0.02  0.52  1.0
  Ni  Ni2  1  0.81  0.94  0.94  1.0
  Ag  Ag3  1  0.84  0.84  0.84  1.0

Zn Ni Ni Ag
Zn Ni Ni Ag 0 2 o o o 0 1 o o - 0 1 - o - 1 3 + o + 1 2 + o + 2 3 o o o 