data_[Er12Al4Ge8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Al  1.6100  1.2500  0.6750
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [11.4904]
_cell_length_b [4.1725]
_cell_length_c [11.4667]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [Er3AlGe2]
_chemical_formula_sum '[Er12 Al4 Ge8]'
_cell_volume [549.7579]
_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  4  0.0547  0.2500  0.3810  1
  Er  Er1  4  0.1272  0.7500  0.9362  1
  Er  Er2  4  0.2021  0.2500  0.7001  1
  Al  Al3  4  0.1339  0.2500  0.1313  1
  Ge  Ge4  4  0.0180  0.7500  0.1854  1
  Ge  Ge5  4  0.1857  0.7500  0.5006  1
]