data_[Tb4Nd20Ho8Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Nd  1.1400  1.8500  1.2765
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [5.6433]
_cell_length_b [20.4123]
_cell_length_c [10.7140]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [TbNd5Ho2Er]
_chemical_formula_sum '[Tb4 Nd20 Ho8 Er4]'
_cell_volume [1234.1655]
_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  0.0000  0.1989  0.0107  1
  Nd  Nd1  4  0.0000  0.0158  0.0176  1
  Nd  Nd2  4  0.0000  0.2797  0.3121  1
  Nd  Nd3  4  0.0000  0.2973  0.7066  1
  Nd  Nd4  4  0.0000  0.3855  0.0217  1
  Nd  Nd5  4  0.0000  0.4830  0.7436  1
  Ho  Ho6  4  0.0000  0.1120  0.7391  1
  Ho  Ho7  4  0.0000  0.1144  0.3097  1
  Er  Er8  4  0.0000  0.4080  0.4628  1
]