data_[Ho18O6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3c]
_cell_length_a [6.1396]
_cell_length_b [6.1396]
_cell_length_c [16.6801]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [167]
_chemical_formula_structural [Ho3O]
_chemical_formula_sum '[Ho18 O6]'
_cell_volume [544.5082]
_cell_formula_units_Z [6]
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  18  0.0000  0.3496  0.2500  1
  O  O1  6  0.0000  0.0000  0.0000  1
]