data_[Er8Zn4Ag8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Zn  1.6500  1.3500  0.8800
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.6252]
_cell_length_b [3.8609]
_cell_length_c [11.6169]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.3349]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Er2ZnAg2]
_chemical_formula_sum '[Er8 Zn4 Ag8]'
_cell_volume [443.8924]
_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  0.0115  0.0000  0.6688  1
  Er  Er1  4  0.1866  0.0000  0.1076  1
  Zn  Zn2  4  0.2004  0.5000  0.3138  1
  Ag  Ag3  4  0.0341  0.5000  0.8896  1
  Ag  Ag4  4  0.1553  0.5000  0.5408  1
]