data_[Tb16Dy4Mg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Dy  1.2200  1.7500  1.1310
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [10.5238]
_cell_length_b [6.1129]
_cell_length_c [11.8613]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.0973]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Tb4DyMg]
_chemical_formula_sum '[Tb16 Dy4 Mg4]'
_cell_volume [729.3281]
_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  0.0813  0.2467  0.5001  1.0
  Tb  Tb1  8  0.1675  0.4187  0.2507  1.0
  Dy  Dy2  4  0.2500  0.2500  0.0000  1.0
  Mg  Mg3  4  0.0000  0.0826  0.7500  1.0
]