data_[K10Rb4Na8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.2284]
_cell_length_b [8.3405]
_cell_length_c [12.1495]
_cell_angle_alpha [90.0000]
_cell_angle_beta [130.6903]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K5(RbNa2)2]
_chemical_formula_sum '[K10 Rb4 Na8]'
_cell_volume [1400.5849]
_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
[
  K  K0  8  0.0010  0.2494  0.1797  1.0
  Rb  Rb1  4  0.1981  0.5000  0.7020  1.0
  K  K2  2  0.0000  0.0000  0.5000  1.0
  Na  Na3  4  0.2454  0.0000  0.5820  1.0
  Na  Na4  4  0.2476  0.0000  0.9007  1.0
]