data_[Er6Tm6Ag6]
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
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [5.0528]
_cell_length_b [5.0528]
_cell_length_c [21.7422]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [ErTmAg]
_chemical_formula_sum '[Er6 Tm6 Ag6]'
_cell_volume [480.7348]
_cell_formula_units_Z [6]
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  3  0.0000  0.0000  0.4115  1
  Er  Er1  3  0.0000  0.0000  0.5763  1
  Tm  Tm2  3  0.0000  0.0000  0.1574  1
  Tm  Tm3  3  0.0000  0.0000  0.9930  1
  Ag  Ag4  3  0.0000  0.0000  0.7158  1
  Ag  Ag5  3  0.0000  0.0000  0.8532  1
]