data_[Li6Fe4Si4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Fe  1.8300  1.4000  0.8525
  Si  1.9000  1.1000  0.5400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2]
_cell_length_a [7.6097]
_cell_length_b [7.3367]
_cell_length_c [6.4291]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.8219]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [5]
_chemical_formula_structural [Li3Fe2(SiO4)2]
_chemical_formula_sum '[Li6 Fe4 Si4 O16]'
_cell_volume [358.9062]
_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
[
  Li  Li0  4  0.1915  0.5007  0.7489  1.0
  Li  Li1  2  0.0000  0.1801  0.5000  1.0
  Fe  Fe2  4  0.1813  0.5041  0.2393  1.0
  Si  Si3  2  0.0000  0.1750  0.0000  1.0
  Si  Si4  2  0.0000  0.8160  0.5000  1.0
  O  O5  4  0.0014  0.6853  0.2944  1.0
  O  O6  4  0.0025  0.3030  0.2144  1.0
  O  O7  4  0.1713  0.9578  0.5091  1.0
  O  O8  4  0.1796  0.0527  0.9992  1.0
]