data_[Mg6Ag12Sn2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Ag  1.9300  1.6000  1.0867
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [8.5053]
_cell_length_b [4.5740]
_cell_length_c [9.9192]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.4806]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Mg3Ag6Sn]
_chemical_formula_sum '[Mg6 Ag12 Sn2]'
_cell_volume [378.1679]
_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
[
  Mg  Mg0  2  0.2509  0.2500  0.0134  1
  Mg  Mg1  2  0.3521  0.7500  0.8077  1
  Mg  Mg2  2  0.4535  0.2500  0.6057  1
  Ag  Ag3  2  0.0574  0.7500  0.9109  1
  Ag  Ag4  2  0.1602  0.7500  0.2029  1
  Ag  Ag5  2  0.1623  0.2500  0.7164  1
  Ag  Ag6  2  0.2624  0.7500  0.5107  1
  Ag  Ag7  2  0.3681  0.2500  0.3055  1
  Ag  Ag8  2  0.4579  0.7500  0.0988  1
  Sn  Sn9  2  0.0548  0.2500  0.3865  1
]