data_[Ho4Er4Si2Ir8]
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
  Si  1.9000  1.1000  0.5400
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [6.3906]
_cell_length_b [6.3906]
_cell_length_c [8.8551]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Ho2Er2SiIr4]
_chemical_formula_sum '[Ho4 Er4 Si2 Ir8]'
_cell_volume [361.6399]
_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  4  0.0000  0.0000  0.3094  1
  Er  Er1  4  0.0000  0.5000  0.2500  1
  Si  Si2  2  0.0000  0.0000  0.0000  1
  Ir  Ir3  8  0.2451  0.2451  0.5000  1
]