data_AgHgPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.35
_cell_length_b   6.35
_cell_length_c   6.35
_cell_angle_alpha   146.99
_cell_angle_beta   129.49
_cell_angle_gamma   61.67
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AgHgPb2
_chemical_formula_sum   'Ag1 Hg1 Pb2'
_cell_volume   106.48
_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
  Ag  Ag0  1  0.0  0.0  0.54  1.0
  Hg  Hg1  1  0.0  0.71  0.45  1.0
  Pb  Pb2  1  0.0  0.0  0.83  1.0
  Pb  Pb3  1  0.8  0.0  0.98  1.0

data_AgHgPb2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.61
_cell_length_b   5.42
_cell_length_c   6.35
_cell_angle_alpha   115.25
_cell_angle_beta   106.51
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AgHgPb2
_chemical_formula_sum   'Ag1 Hg1 Pb2'
_cell_volume   106.48
_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
  Ag  Ag0  1  0.0  0.54  0.54  1.0
  Hg  Hg1  1  0.29  0.74  0.74  1.0
  Pb  Pb2  1  0.0  0.83  0.83  1.0
  Pb  Pb3  1  0.0  0.98  0.18  1.0

Ag Hg Pb Pb
Ag Hg Pb Pb 0 1 o - o 1 2 o + o 2 3 - o o 