data_[Si32O64]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Si  1.9000  1.1000  0.5400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I4_1/amd]
_cell_length_a [8.9147]
_cell_length_b [8.9147]
_cell_length_c [20.5887]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [141]
_chemical_formula_structural [SiO2]
_chemical_formula_sum '[Si32 O64]'
_cell_volume [1636.2340]
_cell_formula_units_Z [32]
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
[
  Si  Si0  32  0.1692  0.1786  0.6912  1
  O  O1  16  0.0000  0.1643  0.3174  1
  O  O2  16  0.0000  0.2419  0.7055  1
  O  O3  16  0.2197  0.2197  0.0000  1
  O  O4  16  0.2363  0.2500  0.6250  1
]