data_[Na2Ho2Si2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ho  1.2300  1.7500  1.0410
  Si  1.9000  1.1000  0.5400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.7026]
_cell_length_b [5.5358]
_cell_length_c [6.8635]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.8185]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [NaHoSiO4]
_chemical_formula_sum '[Na2 Ho2 Si2 O8]'
_cell_volume [216.6470]
_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
[
  Na  Na0  2  0.3960  0.2500  0.1328  1
  Ho  Ho1  2  0.1961  0.2500  0.5690  1
  Si  Si2  2  0.3071  0.7500  0.3420  1
  O  O3  4  0.1245  0.5179  0.3241  1
  O  O4  2  0.4285  0.7500  0.5607  1
  O  O5  2  0.4745  0.2500  0.8106  1
]