data_[Rb2Mg2Al2S6]
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
  Al  1.6100  1.2500  0.6750
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [8.6047]
_cell_length_b [3.6519]
_cell_length_c [10.2857]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.7730]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbMgAlS3]
_chemical_formula_sum '[Rb2 Mg2 Al2 S6]'
_cell_volume [302.1982]
_cell_formula_units_Z [2]
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  0.2653  0.7500  0.7434  1
  Mg  Mg1  2  0.3941  0.7500  0.3845  1
  Al  Al2  2  0.1544  0.2500  0.0963  1
  S  S3  2  0.0161  0.2500  0.8589  1
  S  S4  2  0.2978  0.2500  0.4849  1
  S  S5  2  0.3520  0.7500  0.1335  1
]