data_[K4Al8Si16H8O48]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Al  1.6100  1.2500  0.6750
  Si  1.9000  1.1000  0.5400
  H  2.2000  0.2500  0.0000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [5.2565]
_cell_length_b [9.1635]
_cell_length_c [20.7548]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.0666]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [KAl2Si4(HO6)2]
_chemical_formula_sum '[K4 Al8 Si16 H8 O48]'
_cell_volume [994.1171]
_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
[
  K  K0  4  0.0000  0.0967  0.2500  1
  Al  Al1  8  0.2465  0.0826  0.9996  1
  Si  Si2  8  0.0372  0.4317  0.3682  1
  Si  Si3  8  0.0522  0.2404  0.8678  1
  H  H4  8  0.1241  0.1473  0.4370  1
  O  O5  8  0.0356  0.4473  0.4473  1
  O  O6  8  0.0401  0.0591  0.4510  1
  O  O7  8  0.0627  0.4051  0.8349  1
  O  O8  8  0.1217  0.7520  0.4470  1
  O  O9  8  0.2349  0.1736  0.6553  1
  O  O10  8  0.2365  0.3616  0.1657  1
]