data_[Y8Er2Tm2]
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 [Pmna]
_cell_length_a [5.6052]
_cell_length_b [6.9893]
_cell_length_c [9.6655]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [53]
_chemical_formula_structural [Y4ErTm]
_chemical_formula_sum '[Y8 Er2 Tm2]'
_cell_volume [378.6595]
_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  0.0000  0.2501  0.6559  1
  Y  Y1  4  0.0000  0.2509  0.3220  1
  Er  Er2  2  0.0000  0.0000  0.0000  1
  Tm  Tm3  2  0.0000  0.5000  0.0000  1
]