data_[Pm3Tm3Fe6O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Tm  1.2500  1.7500  1.0950
  Fe  1.8300  1.4000  0.8525
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.4802]
_cell_length_b [5.4802]
_cell_length_c [13.2337]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [PmTm(FeO3)2]
_chemical_formula_sum '[Pm3 Tm3 Fe6 O18]'
_cell_volume [344.1952]
_cell_formula_units_Z [3]
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
[
  Pm  Pm0  3  0.0000  0.0000  0.2265  1
  Tm  Tm1  3  0.0000  0.0000  0.7109  1
  Fe  Fe2  3  0.0000  0.0000  0.4851  1
  Fe  Fe3  3  0.0000  0.0000  0.9849  1
  O  O4  9  0.0168  0.5918  0.2424  1
  O  O5  9  0.0701  0.3365  0.0726  1
]