data_[Tb10Er8Mg2]
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
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [I4mm]
_cell_length_a [10.5222]
_cell_length_b [10.5222]
_cell_length_c [5.7203]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [107]
_chemical_formula_structural [Tb5Er4Mg]
_chemical_formula_sum '[Tb10 Er8 Mg2]'
_cell_volume [633.3316]
_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  0.1861  0.8139  0.0492  1
  Tb  Tb1  2  0.0000  0.0000  0.3309  1
  Er  Er2  8  0.0000  0.3220  0.5385  1
  Mg  Mg3  2  0.0000  0.0000  0.8076  1
]