data_[Er8Tm6Mg4]
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 [C2/m]
_cell_length_a [14.6107]
_cell_length_b [4.8487]
_cell_length_c [7.7446]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.7535]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Er4Tm3Mg2]
_chemical_formula_sum '[Er8 Tm6 Mg4]'
_cell_volume [519.5202]
_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  4  0.0558  0.5000  0.3350  1.0
  Er  Er1  4  0.2212  0.0000  0.3310  1.0
  Tm  Tm2  4  0.1113  0.0000  0.6665  1.0
  Tm  Tm3  2  0.0000  0.0000  0.0000  1.0
  Mg  Mg4  4  0.1693  0.5000  0.9992  1.0
]