data_BeZnSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.2
_cell_length_b   6.17
_cell_length_c   3.01
_cell_angle_alpha   76.43
_cell_angle_beta   75.44
_cell_angle_gamma   28.13
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeZnSn
_chemical_formula_sum   'Be1 Zn1 Sn1'
_cell_volume   52.49
_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
  Be  Be0  1  0.09  0.16  0.34  1.0
  Zn  Zn2  1  0.09  0.16  0.31  1.0
  Sn  Sn1  1  0.09  0.16  0.58  1.0

data_BeZnSn
_symmetry_space_group_name_H-M   Imm2
_cell_length_a   3.01
_cell_length_b   11.62
_cell_length_c   3.01
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   44
_chemical_formula_structural   BeZnSn
_chemical_formula_sum   'Be2 Zn2 Sn2'
_cell_volume   105.05
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-x, -y, z'
  3  '-x, y, z'
  4  'x, -y, z'
  5  'x+1/2, y+1/2, z+1/2'
  6  '-x+1/2, -y+1/2, z+1/2'
  7  '-x+1/2, y+1/2, z+1/2'
  8  'x+1/2, -y+1/2, z+1/2'
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
  Be  Be0  2  0.0  0.0  0.49  1.0
  Zn  Zn1  2  0.0  0.0  0.52  1.0
  Sn  Sn2  2  0.0  0.0  0.25  1.0

Be Zn Sn