data_[Sr6Ca2Tb4Te12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ca  1.0000  1.8000  1.1400
  Tb  1.1000  1.7500  0.9815
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.8724]
_cell_length_b [13.6308]
_cell_length_c [7.9646]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.2131]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sr3Ca(TbTe3)2]
_chemical_formula_sum '[Sr6 Ca2 Tb4 Te12]'
_cell_volume [807.0575]
_cell_formula_units_Z [2]
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
[
  Sr  Sr0  4  0.0000  0.1655  0.5000  1
  Sr  Sr1  2  0.0000  0.5000  0.5000  1
  Ca  Ca2  2  0.0000  0.0000  0.0000  1
  Tb  Tb3  4  0.0000  0.3335  0.0000  1
  Te  Te4  8  0.2459  0.1683  0.2328  1
  Te  Te5  4  0.2408  0.5000  0.2318  1
]