data_ZnAg2Hg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.1
_cell_length_b   5.1
_cell_length_c   3.01
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   109.62
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnAg2Hg
_chemical_formula_sum   'Zn1 Ag2 Hg1'
_cell_volume   73.89
_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
  Ag  Ag0  1  0.47  0.09  0.51  1.0
  Ag  Ag1  1  0.47  0.91  0.51  1.0
  Hg  Hg2  1  0.94  0.0  0.0  1.0

data_ZnAg2Hg
_symmetry_space_group_name_H-M   Pm
_cell_length_a   5.1
_cell_length_b   3.01
_cell_length_c   5.1
_cell_angle_alpha   90.0
_cell_angle_beta   109.62
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   ZnAg2Hg
_chemical_formula_sum   'Zn1 Ag2 Hg1'
_cell_volume   73.89
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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
  Ag  Ag1  1  0.47  0.5  0.91  1.0
  Ag  Ag2  1  0.47  0.5  0.09  1.0
  Hg  Hg3  1  0.94  0.0  0.0  1.0

Zn Ag Ag Hg