data_[Ho2Er10Mg12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [5.3422]
_cell_length_b [16.0218]
_cell_length_c [7.4930]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [HoEr5Mg6]
_chemical_formula_sum '[Ho2 Er10 Mg12]'
_cell_volume [641.3360]
_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
[
  Ho  Ho0  2  0.0000  0.0000  0.0000  1
  Er  Er1  4  0.0000  0.3333  0.0000  1
  Er  Er2  4  0.0000  0.3337  0.5000  1
  Er  Er3  2  0.0000  0.0000  0.5000  1
  Mg  Mg4  8  0.0000  0.1670  0.2503  1
  Mg  Mg5  4  0.0000  0.5000  0.2502  1
]