data_[Er4Tm8Zn8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
  Zn  1.6500  1.3500  0.8800
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [5.2404]
_cell_length_b [15.0136]
_cell_length_c [6.0600]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Er(TmZn)2]
_chemical_formula_sum '[Er4 Tm8 Zn8]'
_cell_volume [476.7771]
_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
[
  Er  Er0  4  0.0000  0.4177  0.5972  1
  Tm  Tm1  4  0.0000  0.0432  0.7553  1
  Tm  Tm2  4  0.0000  0.1990  0.3445  1
  Zn  Zn3  4  0.0000  0.2260  0.8511  1
  Zn  Zn4  4  0.0000  0.3789  0.0863  1
]