data_[Er12Tm12Te8]
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
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.8794]
_cell_length_b [11.9635]
_cell_length_c [19.5725]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Er3Tm3Te2]
_chemical_formula_sum '[Er12 Tm12 Te8]'
_cell_volume [908.3746]
_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  8  0.0000  0.0479  0.6185  1.0
  Er  Er1  4  0.0000  0.3443  0.7500  1.0
  Tm  Tm2  8  0.0000  0.3649  0.5182  1.0
  Tm  Tm3  4  0.0000  0.3859  0.2500  1.0
  Te  Te4  8  0.0000  0.2315  0.1266  1.0
]