data_ZnGaHg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.36
_cell_length_b   5.36
_cell_length_c   5.36
_cell_angle_alpha   146.17
_cell_angle_beta   134.92
_cell_angle_gamma   57.54
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnGaHg
_chemical_formula_sum   'Zn1 Ga1 Hg1'
_cell_volume   60.24
_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  0.0  0.0  0.2  1.0
  Ga  Ga0  1  0.0  0.0  0.3  1.0
  Hg  Hg1  1  0.0  0.0  0.29  1.0

data_ZnGaHg
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.12
_cell_length_b   4.11
_cell_length_c   5.36
_cell_angle_alpha   112.54
_cell_angle_beta   106.92
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnGaHg
_chemical_formula_sum   'Zn1 Ga1 Hg1'
_cell_volume   60.24
_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  0.2  0.2  1.0
  Ga  Ga1  1  0.0  0.3  0.3  1.0
  Hg  Hg2  1  0.0  0.29  0.29  1.0

Zn Ga Hg