data_[Rb8Zr4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Zr  1.3300  1.5500  0.8600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.0847]
_cell_length_b [10.5158]
_cell_length_c [6.9449]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.4702]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2ZrO3]
_chemical_formula_sum '[Rb8 Zr4 O12]'
_cell_volume [423.8679]
_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  0.3426  0.0000  1
  Rb  Rb1  2  0.0000  0.0000  0.0000  1
  Rb  Rb2  2  0.0000  0.5000  0.5000  1
  Zr  Zr3  4  0.0000  0.1670  0.5000  1
  O  O4  8  0.2311  0.2059  0.3191  1
  O  O5  4  0.1515  0.0000  0.6781  1
]