data_[Tb4Tm12Mg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Tm  1.2500  1.7500  1.0950
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.6520]
_cell_length_b [3.5654]
_cell_length_c [12.9795]
_cell_angle_alpha [90.0000]
_cell_angle_beta [93.3915]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [TbTm3Mg]
_chemical_formula_sum '[Tb4 Tm12 Mg4]'
_cell_volume [584.4698]
_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  0.2363  0.0000  0.7693  1
  Tm  Tm1  4  0.0330  0.0000  0.1869  1
  Tm  Tm2  4  0.1331  0.5000  0.9801  1
  Tm  Tm3  4  0.1526  0.0000  0.4311  1
  Mg  Mg4  4  0.0649  0.5000  0.6201  1
]