[CIF]
data_SiO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.81213921
_cell_length_b   10.81213921
_cell_length_c   10.81213921
_cell_angle_alpha   60.00000000
_cell_angle_beta   60.00000000
_cell_angle_gamma   60.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiO2
_chemical_formula_sum   'Si8 O16'
_cell_volume   893.75788814
_cell_formula_units_Z   8
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
  O  O0  1  5.73400271  5.73400271  1.91133424  1
  O  O1  1  1.91133424  1.91133424  1.91133424  1
  O  O2  1  5.73400271  1.91133424  5.73400271  1
  O  O3  1  1.91133424  5.73400271  5.73400271  1
  O  O4  1  3.82266848  3.82266848  5.70164924  1
  O  O5  1  3.82266848  3.82266848  1.94368771  1
  O  O6  1  5.70164924  3.82266848  3.82266848  1
  O  O7  1  3.82266848  5.70164924  3.82266848  1
  O  O8  1  1.94368771  3.82266848  3.82266848  1
  O  O9  1  3.82266848  1.94368771  3.82266848  1
  O  O10  1  7.64533695  7.64533695  13.41169314  1
  O  O11  1  7.64533695  7.64533695  1.87898076  1
  O  O12  1  7.64533695  13.41169314  7.64533695  1
  O  O13  1  13.41169314  7.64533695  7.64533695  1
  O  O14  1  7.64533695  1.87898076  7.64533695  1
  O  O15  1  1.87898076  7.64533695  7.64533695  1
  Si  Si16  1  4.81015975  4.81015975  2.83517721  1
  Si  Si17  1  2.83517721  2.83517721  2.83517721  1
  Si  Si18  1  4.81015975  2.83517721  4.81015975  1
  Si  Si19  1  2.83517721  4.81015975  4.81015975  1
  Si  Si20  1  6.65784568  6.65784568  0.98749127  1
  Si  Si21  1  0.98749127  0.98749127  0.98749127  1
  Si  Si22  1  0.98749127  6.65784568  6.65784568  1
  Si  Si23  1  6.65784568  0.98749127  6.65784568  1
[/CIF]
