data_[Er8Tm12Mg2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [I-42m]
_cell_length_a [6.4074]
_cell_length_b [6.4074]
_cell_length_c [16.7480]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [121]
_chemical_formula_structural [Er4Tm6Mg]
_chemical_formula_sum '[Er8 Tm12 Mg2]'
_cell_volume [687.5934]
_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
[
  Er  Er0  8  0.1762  0.8238  0.1352  1
  Tm  Tm1  8  0.1831  0.8169  0.3320  1
  Tm  Tm2  4  0.0000  0.5000  0.0000  1
  Mg  Mg3  2  0.0000  0.0000  0.5000  1
]