data_[Ca4Tb8Pm10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Tb  1.1000  1.7500  0.9815
  Pm  1.1300  1.8500  1.1100
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.4054]
_cell_length_b [6.7772]
_cell_length_c [6.6781]
_cell_angle_alpha [90.0000]
_cell_angle_beta [97.2967]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ca2Tb4Pm5]
_chemical_formula_sum '[Ca4 Tb8 Pm10]'
_cell_volume [781.3722]
_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
[
  Ca  Ca0  4  0.2020  0.0000  0.3426  1
  Tb  Tb1  4  0.0810  0.5000  0.3863  1
  Tb  Tb2  4  0.2467  0.5000  0.1408  1
  Pm  Pm3  8  0.0879  0.2597  0.8985  1
  Pm  Pm4  2  0.0000  0.0000  0.5000  1
]