data_[Tb12Ni4Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Ni  1.9100  1.3500  0.7400
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [9.7716]
_cell_length_b [14.2313]
_cell_length_c [3.8388]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Tb3NiAg]
_chemical_formula_sum '[Tb12 Ni4 Ag4]'
_cell_volume [533.8345]
_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  8  0.1906  0.8766  0.5000  1
  Tb  Tb1  4  0.0000  0.3251  0.0000  1
  Ni  Ni2  4  0.2500  0.2500  0.0000  1
  Ag  Ag3  2  0.0000  0.0000  0.0000  1
  Ag  Ag4  2  0.0000  0.5000  0.5000  1
]