data_[K4Ce4Si8O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ce  1.1200  1.8500  1.0800
  Si  1.9000  1.1000  0.5400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [10.5501]
_cell_length_b [10.3606]
_cell_length_c [5.4006]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.5811]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [KCe(SiO3)2]
_chemical_formula_sum '[K4 Ce4 Si8 O24]'
_cell_volume [580.2794]
_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  0.1665  0.2500  1.0
  Ce  Ce1  4  0.0000  0.3782  0.7500  1.0
  Si  Si2  8  0.2193  0.0813  0.7773  1.0
  O  O3  8  0.1230  0.4218  0.1636  1.0
  O  O4  8  0.1478  0.2190  0.7240  1.0
  O  O5  8  0.1679  0.0114  0.0222  1.0
]