data_[Sm6Ho6Er8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [3.6588]
_cell_length_b [13.2273]
_cell_length_c [13.2659]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Sm3Ho3Er4]
_chemical_formula_sum '[Sm6 Ho6 Er8]'
_cell_volume [642.0245]
_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
[
  Sm  Sm0  4  0.5000  0.1739  0.4996  1
  Sm  Sm1  2  0.5000  0.0000  0.8268  1
  Ho  Ho2  4  0.0000  0.2474  0.2487  1
  Ho  Ho3  2  0.5000  0.0000  0.1739  1
  Er  Er4  4  0.0000  0.1244  0.0017  1
  Er  Er5  2  0.0000  0.0000  0.3742  1
  Er  Er6  2  0.0000  0.0000  0.6250  1
]