data_[Y4Er6Tm6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.8402]
_cell_length_b [5.6725]
_cell_length_c [5.9966]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.1276]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Y2(ErTm)3]
_chemical_formula_sum '[Y4 Er6 Tm6]'
_cell_volume [499.1298]
_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
[
  Y  Y0  4  0.2499  0.0000  0.3139  1
  Er  Er1  4  0.1292  0.0000  0.6865  1
  Er  Er2  2  0.0000  0.0000  0.0000  1
  Tm  Tm3  4  0.1292  0.5000  0.0733  1
  Tm  Tm4  2  0.0000  0.5000  0.5000  1
]