data_[Nd20Er4Mg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Er  1.2400  1.7500  1.0300
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [8.7334]
_cell_length_b [9.6530]
_cell_length_c [11.9926]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.3036]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Nd5ErMg]
_chemical_formula_sum '[Nd20 Er4 Mg4]'
_cell_volume [941.9348]
_cell_formula_units_Z [4]
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
[
  Nd  Nd0  8  0.1152  0.3431  0.5366  1
  Nd  Nd1  8  0.2071  0.1882  0.8436  1
  Nd  Nd2  4  0.0000  0.1367  0.2500  1
  Er  Er3  4  0.0000  0.4926  0.2500  1
  Mg  Mg4  4  0.0000  0.0000  0.0000  1
]