data_Hg2AsPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.46
_cell_length_b   5.26
_cell_length_c   5.69
_cell_angle_alpha   90.0
_cell_angle_beta   95.86
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Hg2AsPb
_chemical_formula_sum   'Hg2 As1 Pb1'
_cell_volume   102.95
_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
  Hg  Hg1  1  0.67  0.63  0.35  1.0
  Hg  Hg2  1  0.21  0.63  0.31  1.0
  As  As0  1  0.0  0.0  0.0  1.0
  Pb  Pb3  1  0.44  0.0  0.83  1.0

data_Hg2AsPb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.46
_cell_length_b   5.26
_cell_length_c   5.69
_cell_angle_alpha   90.0
_cell_angle_beta   95.86
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Hg2AsPb
_chemical_formula_sum   'Hg2 As1 Pb1'
_cell_volume   102.95
_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
  Hg  Hg0  1  0.21  0.63  0.31  1.0
  Hg  Hg1  1  0.67  0.63  0.35  1.0
  As  As2  1  0.0  0.0  0.0  1.0
  Pb  Pb3  1  0.44  0.0  0.83  1.0

Hg Hg As Pb