data_[Na9Ca9Os3O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ca  1.0000  1.8000  1.1400
  Os  2.2000  1.3000  0.6730
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [6.7469]
_cell_length_b [6.7469]
_cell_length_c [16.5938]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Na3Ca3OsO8]
_chemical_formula_sum '[Na9 Ca9 Os3 O24]'
_cell_volume [654.1642]
_cell_formula_units_Z [3]
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
[
  Na  Na0  9  0.0000  0.5000  0.5000  1.0
  Ca  Ca1  9  0.0000  0.5000  0.0000  1.0
  Os  Os2  3  0.0000  0.0000  0.0000  1.0
  O  O3  18  0.0611  0.5306  0.7323  1.0
  O  O4  6  0.0000  0.0000  0.2610  1.0
]