data_[Sr8Li4Mg4Si12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Li  0.9800  1.4500  0.9000
  Mg  1.3100  1.5000  0.8600
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.6225]
_cell_length_b [19.4854]
_cell_length_c [7.1853]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Sr2LiMgSi3]
_chemical_formula_sum '[Sr8 Li4 Mg4 Si12]'
_cell_volume [647.1901]
_cell_formula_units_Z [4]
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  4  0.0000  0.3461  0.2388  1.0
  Sr  Sr1  4  0.0000  0.4442  0.7520  1.0
  Li  Li2  4  0.0000  0.1904  0.4493  1.0
  Mg  Mg3  4  0.0000  0.1909  0.0564  1.0
  Si  Si4  4  0.0000  0.0526  0.5845  1.0
  Si  Si5  4  0.0000  0.0532  0.9179  1.0
  Si  Si6  4  0.0000  0.2784  0.7510  1.0
]