data_[Li3Tb6Ta3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Tb  1.1000  1.7500  0.9815
  Ta  1.5000  1.4500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.5889]
_cell_length_b [5.5889]
_cell_length_c [14.8618]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [LiTb2TaO6]
_chemical_formula_sum '[Li3 Tb6 Ta3 O18]'
_cell_volume [402.0317]
_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
[
  Li  Li0  3  0.0000  0.0000  0.2128  1
  Tb  Tb1  3  0.0000  0.0000  0.4723  1
  Tb  Tb2  3  0.0000  0.0000  0.9729  1
  Ta  Ta3  3  0.0000  0.0000  0.6817  1
  O  O4  9  0.0087  0.3806  0.4109  1
  O  O5  9  0.0631  0.6853  0.2554  1
]