data_[Tb8Nd4Er12]
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 [Cmcm]
_cell_length_a [10.7060]
_cell_length_b [6.1743]
_cell_length_c [11.5387]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Tb2NdEr3]
_chemical_formula_sum '[Tb8 Nd4 Er12]'
_cell_volume [762.7343]
_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  8  0.1665  0.3339  0.2500  1.0
  Nd  Nd1  4  0.0000  0.1655  0.7500  1.0
  Er  Er2  8  0.1675  0.0000  0.0000  1.0
  Er  Er3  4  0.0000  0.5000  0.0000  1.0
]