data_[Tb6Er2Al4]
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
  Al  1.6100  1.2500  0.6750
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [4.8263]
_cell_length_b [14.8756]
_cell_length_c [4.3789]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Tb3ErAl2]
_chemical_formula_sum '[Tb6 Er2 Al4]'
_cell_volume [314.3787]
_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  0.0000  0.1746  0.5000  1.0
  Tb  Tb1  2  0.0000  0.5000  0.5000  1.0
  Er  Er2  2  0.0000  0.0000  0.0000  1.0
  Al  Al3  4  0.0000  0.3443  0.0000  1.0
]