data_[Y28Er2Mg2]
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 [Amm2]
_cell_length_a [11.3183]
_cell_length_b [7.2385]
_cell_length_c [12.5182]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Y14ErMg]
_chemical_formula_sum '[Y28 Er2 Mg2]'
_cell_volume [1025.5802]
_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  0.2452  0.2497  0.4162  1
  Y  Y1  4  0.0000  0.2442  0.0867  1
  Y  Y2  4  0.2474  0.0000  0.6664  1
  Y  Y3  4  0.2519  0.0000  0.1667  1
  Y  Y4  4  0.5000  0.2483  0.5824  1
  Y  Y5  2  0.5000  0.0000  0.3346  1
  Y  Y6  2  0.5000  0.0000  0.8334  1
  Er  Er7  2  0.0000  0.0000  0.3294  1
  Mg  Mg8  2  0.0000  0.0000  0.8334  1
]