data_[Ho10Er8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [10.5651]
_cell_length_b [10.5651]
_cell_length_c [4.9563]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Ho5Er4]
_chemical_formula_sum '[Ho10 Er8]'
_cell_volume [553.2298]
_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
[
  Ho  Ho0  8  0.0000  0.3331  0.0000  1.0
  Ho  Ho1  2  0.0000  0.0000  0.0000  1.0
  Er  Er2  8  0.1667  0.1667  0.5000  1.0
]