data_[Ca1Tb5Mg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Tb  1.1000  1.7500  0.9815
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [3.8232]
_cell_length_b [3.8232]
_cell_length_c [20.0041]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [CaTb5Mg4]
_chemical_formula_sum '[Ca1 Tb5 Mg4]'
_cell_volume [292.3954]
_cell_formula_units_Z [1]
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
[
  Ca  Ca0  1  0.0000  0.0000  0.0000  1.0
  Tb  Tb1  2  0.5000  0.5000  0.1296  1.0
  Tb  Tb2  2  0.5000  0.5000  0.3129  1.0
  Tb  Tb3  1  0.5000  0.5000  0.5000  1.0
  Mg  Mg4  2  0.0000  0.0000  0.2200  1.0
  Mg  Mg5  2  0.0000  0.0000  0.4065  1.0
]