data_[Ho4Fe2Si8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Fe  1.8300  1.4000  0.8525
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [3.9743]
_cell_length_b [4.0842]
_cell_length_c [15.0409]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Ho2FeSi4]
_chemical_formula_sum '[Ho4 Fe2 Si8]'
_cell_volume [244.1377]
_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  2  0.0000  0.0000  0.8969  1.0
  Ho  Ho1  2  0.5000  0.0000  0.0996  1.0
  Fe  Fe2  2  0.0000  0.0000  0.6935  1.0
  Si  Si3  2  0.0000  0.0000  0.2558  1.0
  Si  Si4  2  0.0000  0.0000  0.5436  1.0
  Si  Si5  2  0.5000  0.0000  0.4384  1.0
  Si  Si6  2  0.5000  0.0000  0.7562  1.0
]