data_[Li6Mg2Ag8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Mg  1.3100  1.5000  0.8600
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [5.5446]
_cell_length_b [9.4415]
_cell_length_c [5.2949]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [Li3MgAg4]
_chemical_formula_sum '[Li6 Mg2 Ag8]'
_cell_volume [277.1878]
_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  0.0000  0.2384  0.5815  1
  Li  Li1  2  0.0000  0.0000  0.8495  1
  Mg  Mg2  2  0.0000  0.5000  0.3253  1
  Ag  Ag3  4  0.0000  0.2462  0.0799  1
  Ag  Ag4  4  0.2497  0.5000  0.8267  1
]