data_[Tb18Dy8Mg22]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Dy  1.2200  1.7500  1.1310
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [16.4096]
_cell_length_b [22.5651]
_cell_length_c [3.6229]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Tb9Dy4Mg11]
_chemical_formula_sum '[Tb18 Dy8 Mg22]'
_cell_volume [1341.5052]
_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
[
  Tb  Tb0  8  0.1122  0.2662  0.5000  1
  Tb  Tb1  8  0.1141  0.0935  0.5000  1
  Tb  Tb2  2  0.0000  0.5000  0.5000  1
  Dy  Dy3  8  0.1649  0.4157  0.5000  1
  Mg  Mg4  8  0.2325  0.1791  0.0000  1
  Mg  Mg5  4  0.0000  0.1787  0.0000  1
  Mg  Mg6  4  0.0000  0.3673  0.0000  1
  Mg  Mg7  4  0.2162  0.0000  0.0000  1
  Mg  Mg8  2  0.0000  0.0000  0.0000  1
]