data_Ca2SiSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.56
_cell_length_b   5.56
_cell_length_c   3.41
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   105.52
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ca2SiSn
_chemical_formula_sum   'Ca2 Si1 Sn1'
_cell_volume   101.65
_cell_formula_units_Z   1
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
  Ca  Ca0  1  0.68  0.79  0.7  1.0
  Ca  Ca1  1  0.68  0.21  0.7  1.0
  Si  Si2  1  0.0  0.0  0.0  1.0
  Sn  Sn3  1  0.37  0.0  0.0  1.0

data_Ca2SiSn
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.41
_cell_length_b   5.56
_cell_length_c   5.56
_cell_angle_alpha   105.52
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ca2SiSn
_chemical_formula_sum   'Ca2 Si1 Sn1'
_cell_volume   101.65
_cell_formula_units_Z   1
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
  Ca  Ca0  1  0.7  0.68  0.21  1.0
  Ca  Ca1  1  0.7  0.68  0.79  1.0
  Si  Si2  1  0.0  0.0  0.0  1.0
  Sn  Sn3  1  0.0  0.37  0.0  1.0

Ca Ca Si Sn