data_[K4Nd4Si8O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Nd  1.1400  1.8500  1.2765
  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 [10.5122]
_cell_length_b [10.3073]
_cell_length_c [5.4258]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.2960]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [KNd(SiO3)2]
_chemical_formula_sum '[K4 Nd4 Si8 O24]'
_cell_volume [576.5155]
_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  0.1669  0.2500  1.0
  Nd  Nd1  4  0.0000  0.3780  0.7500  1.0
  Si  Si2  8  0.2199  0.0810  0.7778  1.0
  O  O3  8  0.1214  0.4242  0.1586  1.0
  O  O4  8  0.1493  0.2197  0.7225  1.0
  O  O5  8  0.1679  0.0116  0.0212  1.0
]