data_[Sr4Mg34]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [P6_3/mmc]
_cell_length_a [10.5006]
_cell_length_b [10.5006]
_cell_length_c [10.2792]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [194]
_chemical_formula_structural [Sr2Mg17]
_chemical_formula_sum '[Sr4 Mg34]'
_cell_volume [981.5694]
_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
[
  Sr  Sr0  2  0.0000  0.0000  0.2500  1
  Sr  Sr1  2  0.3333  0.6667  0.7500  1
  Mg  Mg2  12  0.0383  0.3675  0.2500  1
  Mg  Mg3  12  0.1653  0.3306  0.5201  1
  Mg  Mg4  6  0.0000  0.5000  0.0000  1
  Mg  Mg5  4  0.3333  0.6667  0.1025  1
]