data_[Ba6Ca3Te3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Ca  1.0000  1.8000  1.1400
  Te  2.1000  1.4000  1.2933
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [6.0169]
_cell_length_b [6.0169]
_cell_length_c [14.7316]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Ba2CaTeO6]
_chemical_formula_sum '[Ba6 Ca3 Te3 O18]'
_cell_volume [461.8708]
_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
[
  Ba  Ba0  6  0.0000  0.0000  0.2500  1.0
  Ca  Ca1  3  0.0000  0.0000  0.0000  1.0
  Te  Te2  3  -0.0000  0.0000  0.5000  1.0
  O  O3  18  0.0268  0.5047  0.2433  1.0
]