data_[Er3Cr6Ga3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Cr  1.6600  1.4000  0.9400
  Ga  1.8100  1.3000  0.7600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.2508]
_cell_length_b [5.2508]
_cell_length_c [13.9032]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [ErCr2GaO6]
_chemical_formula_sum '[Er3 Cr6 Ga3 O18]'
_cell_volume [331.9690]
_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  0.2012  1.0
  Cr  Cr1  3  0.0000  0.0000  0.4822  1.0
  Cr  Cr2  3  0.0000  0.0000  0.9862  1.0
  Ga  Ga3  3  0.0000  0.0000  0.6879  1.0
  O  O4  9  0.0080  0.3151  0.0775  1.0
  O  O5  9  0.0272  0.6234  0.2494  1.0
]