data_ZnSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.71
_cell_length_b   6.71
_cell_length_c   6.71
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnSn2
_chemical_formula_sum   'Zn4 Sn8'
_cell_volume   302.5
_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
  Zn  Zn8  1  0.36  0.0  0.36  1.0
  Zn  Zn9  1  0.0  0.36  0.36  1.0
  Zn  Zn10  1  0.0  0.0  0.0  1.0
  Zn  Zn11  1  0.36  0.36  0.0  1.0
  Sn  Sn0  1  0.88  0.24  0.83  1.0
  Sn  Sn1  1  0.83  0.48  0.88  1.0
  Sn  Sn2  1  0.24  0.83  0.88  1.0
  Sn  Sn3  1  0.48  0.88  0.83  1.0
  Sn  Sn4  1  0.83  0.88  0.24  1.0
  Sn  Sn5  1  0.88  0.83  0.48  1.0
  Sn  Sn6  1  0.48  0.48  0.48  1.0
  Sn  Sn7  1  0.24  0.24  0.24  1.0

data_ZnSn2
_symmetry_space_group_name_H-M   R3
_cell_length_a   9.49
_cell_length_b   9.49
_cell_length_c   11.63
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   146
_chemical_formula_structural   ZnSn2
_chemical_formula_sum   'Zn12 Sn24'
_cell_volume   907.5
_cell_formula_units_Z   12
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  'x+1/3, y+2/3, z+2/3'
  5  '-y+1/3, x-y+2/3, z+2/3'
  6  '-x+y+1/3, -x+2/3, z+2/3'
  7  'x+2/3, y+1/3, z+1/3'
  8  '-y+2/3, x-y+1/3, z+1/3'
  9  '-x+y+2/3, -x+1/3, z+1/3'
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
  Zn  Zn0  9  0.1  0.55  0.9  1.0
  Zn  Zn1  3  0.0  0.0  0.0  1.0
  Sn  Sn2  9  0.08  0.56  0.4  1.0
  Sn  Sn3  9  0.18  0.41  0.65  1.0
  Sn  Sn4  3  0.0  0.0  0.24  1.0
  Sn  Sn5  3  0.0  0.0  0.48  1.0

Zn Zn Zn Zn Sn Sn Sn Sn Sn Sn Sn Sn