data_[Mg4Ir2Pb2O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Ir  2.2000  1.3500  0.7650
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [6.5139]
_cell_length_b [6.7877]
_cell_length_c [6.5900]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Mg2IrPbO8]
_chemical_formula_sum '[Mg4 Ir2 Pb2 O16]'
_cell_volume [291.3717]
_cell_formula_units_Z [2]
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
[
  Mg  Mg0  4  0.0000  0.5000  0.2461  1
  Ir  Ir1  2  0.0000  0.0000  0.0000  1
  Pb  Pb2  2  0.0000  0.0000  0.5000  1
  O  O3  8  0.0000  0.1930  0.2114  1
  O  O4  4  0.1834  0.5000  0.5000  1
  O  O5  4  0.2138  0.5000  0.0000  1
]