data_[Ho4Mg8Pb20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Mg  1.3100  1.5000  0.8600
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [8.4235]
_cell_length_b [8.4235]
_cell_length_c [12.6360]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [HoMg2Pb5]
_chemical_formula_sum '[Ho4 Mg8 Pb20]'
_cell_volume [896.5827]
_cell_formula_units_Z [4]
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
[
  Ho  Ho0  4  0.0000  0.0000  0.2500  1
  Mg  Mg1  8  0.1393  0.3607  0.0000  1
  Pb  Pb2  16  0.1502  0.3498  0.3395  1
  Pb  Pb3  4  0.0000  0.0000  0.0000  1
]