data_[Er3Ni6Sb3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Ni  1.9100  1.3500  0.7400
  Sb  2.0500  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.3145]
_cell_length_b [5.3145]
_cell_length_c [14.4195]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [ErNi2SbO6]
_chemical_formula_sum '[Er3 Ni6 Sb3 O18]'
_cell_volume [352.7055]
_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
[
  Er  Er0  3  0.0000  0.0000  0.1913  1
  Ni  Ni1  3  0.0000  0.0000  0.4789  1
  Ni  Ni2  3  0.0000  0.0000  0.9848  1
  Sb  Sb3  3  0.0000  0.0000  0.6808  1
  O  O4  9  0.0209  0.7223  0.5876  1
  O  O5  9  0.0221  0.3429  0.7468  1
]