data_[Rb3Gd3Mg3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Gd  1.2000  1.8000  1.0750
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [P-62m]
_cell_length_a [8.3159]
_cell_length_b [8.3159]
_cell_length_c [6.3007]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [189]
_chemical_formula_structural [RbGdMg]
_chemical_formula_sum '[Rb3 Gd3 Mg3]'
_cell_volume [377.3436]
_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
[
  Rb  Rb0  2  0.3333  0.6667  0.5000  1
  Rb  Rb1  1  0.0000  0.0000  0.0000  1
  Gd  Gd2  3  0.0000  0.4971  0.0000  1
  Mg  Mg3  3  0.0000  0.7877  0.5000  1
]