data_[Ge6O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ge  2.0100  1.2500  0.7700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2]
_cell_length_a [7.6983]
_cell_length_b [4.2551]
_cell_length_c [6.1846]
_cell_angle_alpha [90.0000]
_cell_angle_beta [91.5741]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [5]
_chemical_formula_structural [GeO2]
_chemical_formula_sum '[Ge6 O12]'
_cell_volume [202.5133]
_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
[
  Ge  Ge0  4  0.2226  0.2288  0.1669  1
  Ge  Ge1  2  0.0000  0.5500  0.5000  1
  O  O2  4  0.0153  0.3405  0.2557  1
  O  O3  4  0.1652  0.8083  0.5874  1
  O  O4  4  0.1807  0.8402  0.0782  1
]