data_MgZr2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.6
_cell_length_b   5.6
_cell_length_c   5.6
_cell_angle_alpha   147.19
_cell_angle_beta   134.69
_cell_angle_gamma   57.06
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgZr2
_chemical_formula_sum   'Mg1 Zr2'
_cell_volume   67.22
_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
  Mg  Mg0  1  0.0  0.0  0.0  1.0
  Zr  Zr1  1  0.0  0.0  0.28  1.0
  Zr  Zr2  1  0.0  0.0  0.57  1.0

data_MgZr2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.16
_cell_length_b   4.32
_cell_length_c   5.6
_cell_angle_alpha   112.65
_cell_angle_beta   106.4
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgZr2
_chemical_formula_sum   'Mg1 Zr2'
_cell_volume   67.22
_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
  Mg  Mg0  1  0.0  0.0  0.0  1.0
  Zr  Zr1  1  0.0  0.28  0.28  1.0
  Zr  Zr2  1  0.0  0.57  0.57  1.0

Mg Zr Zr
Mg Zr Zr 0 1 o o o 1 2 o o o 