data_[Er10Tm10Mg4]
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 [11.9089]
_cell_length_b [5.3767]
_cell_length_c [11.5527]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.3166]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Er5Tm5Mg2]
_chemical_formula_sum '[Er10 Tm10 Mg4]'
_cell_volume [698.0861]
_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  0.0575  0.5000  0.2349  1.0
  Er  Er1  4  0.1912  0.5000  0.0308  1.0
  Er  Er2  2  0.0000  0.5000  0.5000  1.0
  Tm  Tm3  4  0.1780  0.0000  0.5191  1.0
  Tm  Tm4  4  0.2454  0.5000  0.7511  1.0
  Tm  Tm5  2  0.0000  0.0000  0.0000  1.0
  Mg  Mg6  4  0.0686  0.0000  0.7349  1.0
]