data_[Na4Be2Ge2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Be  1.5700  1.0500  0.5900
  Ge  2.0100  1.2500  0.7700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I-4]
_cell_length_a [5.0263]
_cell_length_b [5.0263]
_cell_length_c [7.3373]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [82]
_chemical_formula_structural [Na2BeGeO4]
_chemical_formula_sum '[Na4 Be2 Ge2 O8]'
_cell_volume [185.3695]
_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
[
  Na  Na0  2  0.0000  0.0000  0.0000  1.0
  Na  Na1  2  0.0000  0.5000  0.2500  1.0
  Be  Be2  2  0.0000  0.0000  0.5000  1.0
  Ge  Ge3  2  0.0000  0.5000  0.7500  1.0
  O  O4  8  0.1480  0.7588  0.6186  1.0
]