data_[Tb4Mg12Ag8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Mg  1.3100  1.5000  0.8600
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.1953]
_cell_length_b [4.4724]
_cell_length_c [8.2261]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.8024]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [TbMg3Ag2]
_chemical_formula_sum '[Tb4 Mg12 Ag8]'
_cell_volume [549.2683]
_cell_formula_units_Z [4]
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
[
  Tb  Tb0  4  0.1187  0.0000  0.1558  1.0
  Mg  Mg1  4  0.0529  0.0000  0.6906  1.0
  Mg  Mg2  4  0.1503  0.5000  0.4926  1.0
  Mg  Mg3  4  0.1872  0.5000  0.9001  1.0
  Ag  Ag4  4  0.0069  0.5000  0.8347  1.0
  Ag  Ag5  4  0.2329  0.0000  0.7163  1.0
]