data_[Ho8Er20]
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 [C2/c]
_cell_length_a [15.5056]
_cell_length_b [6.1994]
_cell_length_c [9.0769]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.3252]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Ho2Er5]
_chemical_formula_sum '[Ho8 Er20]'
_cell_volume [867.2118]
_cell_formula_units_Z [4]
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  0.0715  0.3326  0.1072  1.0
  Er  Er1  8  0.1431  0.1668  0.4643  1.0
  Er  Er2  8  0.2142  0.3330  0.8215  1.0
  Er  Er3  4  0.0000  0.1671  0.7500  1.0
]