data_[Tb20Dy4Mg4]
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 [C2/m]
_cell_length_a [11.9791]
_cell_length_b [5.4882]
_cell_length_c [13.1843]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.3373]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb5DyMg]
_chemical_formula_sum '[Tb20 Dy4 Mg4]'
_cell_volume [863.0218]
_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
[
  Tb  Tb0  4  0.0653  0.5000  0.6326  1
  Tb  Tb1  4  0.0653  0.5000  0.1328  1
  Tb  Tb2  4  0.1364  0.0000  0.8038  1
  Tb  Tb3  4  0.2415  0.5000  0.4257  1
  Tb  Tb4  4  0.2417  0.5000  0.9255  1
  Dy  Dy5  4  0.1364  0.0000  0.3039  1
  Mg  Mg6  2  0.0000  0.0000  0.0000  1
  Mg  Mg7  2  0.0000  0.0000  0.5000  1
]