data_AlZnSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.78
_cell_length_b   2.78
_cell_length_c   7.97
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   93.72
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlZnSi2
_chemical_formula_sum   'Al1 Zn1 Si2'
_cell_volume   61.46
_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
  Al  Al0  1  0.0  0.0  0.93  1.0
  Zn  Zn3  1  0.9  0.0  1.0  1.0
  Si  Si1  1  0.9  0.0  0.95  1.0
  Si  Si2  1  0.0  0.0  0.03  1.0

data_AlZnSi2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.78
_cell_length_b   2.78
_cell_length_c   7.97
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   93.72
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlZnSi2
_chemical_formula_sum   'Al1 Zn1 Si2'
_cell_volume   61.46
_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
  Al  Al0  1  0.0  0.0  0.93  1.0
  Zn  Zn1  1  0.9  0.0  1.0  1.0
  Si  Si2  1  0.0  0.0  0.03  1.0
  Si  Si3  1  0.9  0.0  0.95  1.0

Al Zn Si Si