data_[Er2Ag2Sn2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Ag  1.9300  1.6000  1.0867
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [P6_3mc]
_cell_length_a [4.7259]
_cell_length_b [4.7259]
_cell_length_c [7.3569]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [186]
_chemical_formula_structural [ErAgSn]
_chemical_formula_sum '[Er2 Ag2 Sn2]'
_cell_volume [142.2952]
_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
[
  Er  Er0  2  0.0000  0.0000  0.2479  1.0
  Ag  Ag1  2  0.3333  0.6667  0.0591  1.0
  Sn  Sn2  2  0.3333  0.6667  0.4660  1.0
]