data_[Tb4Nd12Er4]
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
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [7.2274]
_cell_length_b [3.6364]
_cell_length_c [25.5444]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [TbNd3Er]
_chemical_formula_sum '[Tb4 Nd12 Er4]'
_cell_volume [671.3427]
_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  0.1236  0.7500  0.1483  1
  Nd  Nd1  4  0.1183  0.7500  0.3515  1
  Nd  Nd2  4  0.1277  0.7500  0.9507  1
  Nd  Nd3  4  0.1301  0.7500  0.7502  1
  Er  Er4  4  0.1257  0.7500  0.5491  1
]