data_[Ho2Er12Mg4]
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 [C2/m]
_cell_length_a [8.7644]
_cell_length_b [9.4028]
_cell_length_c [6.4246]
_cell_angle_alpha [90.0000]
_cell_angle_beta [97.5621]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ho(Er3Mg)2]
_chemical_formula_sum '[Ho2 Er12 Mg4]'
_cell_volume [524.8482]
_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  0.5000  0.0000  1.0
  Er  Er1  8  0.1647  0.1713  0.1792  1.0
  Er  Er2  4  0.1634  0.0000  0.6751  1.0
  Mg  Mg3  4  0.0000  0.3458  0.5000  1.0
]