data_[Mg8Zn8Cu4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Zn  1.6500  1.3500  0.8800
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.3171]
_cell_length_b [14.7777]
_cell_length_c [5.2761]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Mg2Zn2Cu]
_chemical_formula_sum '[Mg8 Zn8 Cu4]'
_cell_volume [336.5986]
_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
[
  Mg  Mg0  4  0.0000  0.0714  0.6184  1.0
  Mg  Mg1  4  0.0000  0.2768  0.8656  1.0
  Zn  Zn2  4  0.0000  0.3526  0.3770  1.0
  Zn  Zn3  4  0.0000  0.4626  0.7785  1.0
  Cu  Cu4  4  0.0000  0.1220  0.1321  1.0
]