data_[Rb10Mg10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [5.2715]
_cell_length_b [26.0079]
_cell_length_c [7.9334]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [RbMg]
_chemical_formula_sum '[Rb10 Mg10]'
_cell_volume [1087.6612]
_cell_formula_units_Z [10]
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  4  0.0000  0.1856  0.7542  1
  Rb  Rb1  4  0.5000  0.1456  0.2697  1
  Rb  Rb2  2  0.0000  0.0000  0.5061  1
  Mg  Mg3  4  0.0000  0.0581  0.0182  1
  Mg  Mg4  4  0.5000  0.0656  0.8070  1
  Mg  Mg5  2  0.5000  0.0000  0.1288  1
]