data_[Er8Tm4Fe4]
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
  Fe  1.8300  1.4000  0.8525
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.7430]
_cell_length_b [11.6889]
_cell_length_c [8.9436]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Er2TmFe]
_chemical_formula_sum '[Er8 Tm4 Fe4]'
_cell_volume [391.2922]
_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  0.3566  0.5681  1
  Tm  Tm1  4  0.0000  0.0804  0.7500  1
  Fe  Fe2  4  0.0000  0.2585  0.2500  1
]