data_[Sr6Ca3Mg36Al9]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ca  1.0000  1.8000  1.1400
  Mg  1.3100  1.5000  0.8600
  Al  1.6100  1.2500  0.6750
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [9.1736]
_cell_length_b [9.1736]
_cell_length_c [22.8238]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Sr2Ca(Mg4Al)3]
_chemical_formula_sum '[Sr6 Ca3 Mg36 Al9]'
_cell_volume [1663.4045]
_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
[
  Sr  Sr0  6  0.0000  0.0000  0.4165  1
  Ca  Ca1  3  0.0000  0.0000  0.0000  1
  Mg  Mg2  18  0.0814  0.5407  0.7785  1
  Mg  Mg3  18  0.0880  0.5440  0.3757  1
  Al  Al4  9  0.0000  0.5000  0.5000  1
]