data_[Er8Al8Ni8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Al  1.6100  1.2500  0.6750
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [8.4637]
_cell_length_b [5.3689]
_cell_length_c [9.1845]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [ErAlNi]
_chemical_formula_sum '[Er8 Al8 Ni8]'
_cell_volume [417.3513]
_cell_formula_units_Z [8]
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
[
  Er  Er0  4  0.1760  0.0000  0.6699  1.0
  Er  Er1  4  0.2958  0.0000  0.3327  1.0
  Al  Al2  4  0.2376  0.0000  0.9956  1.0
  Al  Al3  4  0.5000  0.2452  0.5864  1.0
  Ni  Ni4  4  0.0000  0.2473  0.4159  1.0
  Ni  Ni5  2  0.0000  0.0000  0.1669  1.0
  Ni  Ni6  2  0.5000  0.0000  0.8322  1.0
]