data_[Tb8Er8Tm2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [10.5829]
_cell_length_b [10.5829]
_cell_length_c [4.9797]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Tb4Er4Tm]
_chemical_formula_sum '[Tb8 Er8 Tm2]'
_cell_volume [557.7185]
_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  0.1666  0.8334  0.5000  1.0
  Er  Er1  8  0.0000  0.3338  0.0000  1.0
  Tm  Tm2  2  0.0000  0.0000  0.0000  1.0
]