data_[Ge2Te2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ge  2.0100  1.2500  0.7700
  Te  2.1000  1.4000  1.2933
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pnc2]
_cell_length_a [4.8289]
_cell_length_b [5.3246]
_cell_length_c [5.8628]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [30]
_chemical_formula_structural [GeTeO4]
_chemical_formula_sum '[Ge2 Te2 O8]'
_cell_volume [150.7423]
_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
[
  Ge  Ge0  2  0.5000  0.0000  0.7762  1
  Te  Te1  2  0.0000  0.0000  0.1673  1
  O  O2  4  0.2203  0.6683  0.4228  1
  O  O3  4  0.3019  0.2137  0.6055  1
]