data_[Ba3Mg3Hg12Pb6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Mg  1.3100  1.5000  0.8600
  Hg  2.0000  1.5000  1.2450
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [5.2641]
_cell_length_b [5.2641]
_cell_length_c [28.9442]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [BaMg(Hg2Pb)2]
_chemical_formula_sum '[Ba3 Mg3 Hg12 Pb6]'
_cell_volume [694.6016]
_cell_formula_units_Z [3]
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
[
  Ba  Ba0  3  0.0000  0.0000  0.0000  1.0
  Mg  Mg1  3  -0.0000  -0.0000  0.5000  1.0
  Hg  Hg2  6  0.0000  0.0000  0.1337  1.0
  Hg  Hg3  6  0.0000  0.0000  0.3922  1.0
  Pb  Pb4  6  0.0000  0.0000  0.2455  1.0
]