data_[Y16Er4Mg2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.6651]
_cell_length_b [6.8752]
_cell_length_c [5.6606]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.1423]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Y8Er2Mg]
_chemical_formula_sum '[Y16 Er4 Mg2]'
_cell_volume [725.8964]
_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
[
  Y  Y0  8  0.1296  0.2649  0.7410  1
  Y  Y1  4  0.0493  0.5000  0.2341  1
  Y  Y2  4  0.1811  0.0000  0.2349  1
  Er  Er3  4  0.2180  0.5000  0.2553  1
  Mg  Mg4  2  0.0000  0.0000  0.0000  1
]