data_[Tb16Ho4Mg2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Ho  1.2300  1.7500  1.0410
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.9803]
_cell_length_b [4.9778]
_cell_length_c [7.8967]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.2990]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb8Ho2Mg]
_chemical_formula_sum '[Tb16 Ho4 Mg2]'
_cell_volume [681.7221]
_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
[
  Tb  Tb0  4  0.0452  0.0000  0.7207  1.0
  Tb  Tb1  4  0.0905  0.5000  0.4493  1.0
  Tb  Tb2  4  0.1361  0.0000  0.1825  1.0
  Tb  Tb3  4  0.1823  0.5000  0.9115  1.0
  Ho  Ho4  4  0.2252  0.0000  0.6348  1.0
  Mg  Mg5  2  0.0000  0.5000  0.0000  1.0
]