data_[Na4Ge8As4O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ge  2.0100  1.2500  0.7700
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [10.5879]
_cell_length_b [9.3644]
_cell_length_c [5.6899]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.2424]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [NaGe2AsO6]
_chemical_formula_sum '[Na4 Ge8 As4 O24]'
_cell_volume [538.8003]
_cell_formula_units_Z [4]
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  4  0.0000  0.0989  0.2500  1.0
  Ge  Ge1  8  0.2210  0.4023  0.2138  1.0
  As  As2  4  0.0000  0.2626  0.7500  1.0
  O  O3  8  0.1023  0.1218  0.6644  1.0
  O  O4  8  0.1309  0.2477  0.1059  1.0
  O  O5  8  0.1791  0.4620  0.4813  1.0
]