data_[Tb10Er2Si8]
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
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.1029]
_cell_length_b [4.9186]
_cell_length_c [6.8058]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.2244]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb5ErSi4]
_chemical_formula_sum '[Tb10 Er2 Si8]'
_cell_volume [505.5690]
_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  4  0.1648  0.0000  0.4956  1
  Tb  Tb1  4  0.1651  0.0000  0.0060  1
  Tb  Tb2  2  0.0000  0.5000  0.5000  1
  Er  Er3  2  0.0000  0.5000  0.0000  1
  Si  Si4  4  0.0086  0.0000  0.7535  1
  Si  Si5  4  0.1767  0.5000  0.2495  1
]