data_[Na8Zr4Si24O72]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Zr  1.3300  1.5500  0.8600
  Si  1.9000  1.1000  0.5400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pbcm]
_cell_length_a [7.2474]
_cell_length_b [14.9229]
_cell_length_c [14.6042]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [57]
_chemical_formula_structural [Na2Zr(SiO3)6]
_chemical_formula_sum '[Na8 Zr4 Si24 O72]'
_cell_volume [1579.4758]
_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  0.0023  0.2500  0.0000  1
  Na  Na1  4  0.4636  0.7340  0.2500  1
  Zr  Zr2  4  0.4967  0.7500  0.0000  1
  Si  Si3  8  0.2186  0.6064  0.6421  1
  Si  Si4  8  0.2245  0.1118  0.6440  1
  Si  Si5  8  0.4943  0.0471  0.1403  1
  O  O6  8  0.0036  0.0951  0.6339  1
  O  O7  8  0.0234  0.6250  0.1743  1
  O  O8  8  0.2861  0.6902  0.5812  1
  O  O9  8  0.2863  0.1910  0.5759  1
  O  O10  8  0.3107  0.5108  0.6125  1
  O  O11  8  0.3236  0.0159  0.6237  1
  O  O12  8  0.4911  0.6410  0.0887  1
  O  O13  4  0.0825  0.6593  0.2500  1
  O  O14  4  0.2737  0.1445  0.7500  1
  O  O15  4  0.2753  0.6292  0.7500  1
  O  O16  4  0.4842  0.0735  0.2500  1
]