data_[Tb7Er3Mg1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Er  1.2400  1.7500  1.0300
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [6.4813]
_cell_length_b [6.5046]
_cell_length_c [8.4562]
_cell_angle_alpha [99.1876]
_cell_angle_beta [98.8167]
_cell_angle_gamma [94.9030]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Tb7Er3Mg]
_chemical_formula_sum '[Tb7 Er3 Mg1]'
_cell_volume [345.5510]
_cell_formula_units_Z [1]
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  2  0.0719  0.2011  0.1594  1
  Tb  Tb1  2  0.2611  0.0088  0.5926  1
  Tb  Tb2  2  0.2953  0.4543  0.8548  1
  Tb  Tb3  1  0.5000  0.5000  0.5000  1
  Er  Er4  2  0.2208  0.7340  0.2176  1
  Er  Er5  1  0.5000  0.0000  0.0000  1
  Mg  Mg6  1  0.0000  0.5000  0.5000  1
]