data_[Rb4Na4Zr4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Zr  1.3300  1.5500  0.8600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [6.0032]
_cell_length_b [11.3901]
_cell_length_c [5.8443]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [RbNaZrO3]
_chemical_formula_sum '[Rb4 Na4 Zr4 O12]'
_cell_volume [399.6177]
_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
[
  Rb  Rb0  4  0.0000  0.2687  0.2500  1
  Na  Na1  4  0.0000  0.4271  0.7500  1
  Zr  Zr2  4  0.0000  0.0583  0.7500  1
  O  O3  8  0.2256  0.0000  0.0000  1
  O  O4  4  0.0000  0.2282  0.7500  1
]