data_[K12Rb4Na6]
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 [Cmmm]
_cell_length_a [6.3871]
_cell_length_b [17.5505]
_cell_length_c [13.3855]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [K6Rb2Na3]
_chemical_formula_sum '[K12 Rb4 Na6]'
_cell_volume [1500.4669]
_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  0.0000  0.1628  0.2275  1
  Rb  Rb1  4  0.0000  0.3618  0.5000  1
  K  K2  4  0.0000  0.5000  0.1862  1
  Na  Na3  4  0.0000  0.3171  0.0000  1
  Na  Na4  2  0.0000  0.0000  0.0000  1
]