data_Mg2W
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.45
_cell_length_b   7.57
_cell_length_c   2.61
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg2W
_chemical_formula_sum   'Mg4 W2'
_cell_volume   147.59
_cell_formula_units_Z   2
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  0.88  0.01  0.0  1.0
  Mg  Mg1  1  0.85  0.8  0.31  1.0
  Mg  Mg2  1  0.6  0.78  0.31  1.0
  Mg  Mg3  1  0.58  0.57  0.0  1.0
  W  W4  1  0.0  0.0  0.0  1.0
  W  W5  1  0.73  0.79  0.31  1.0

data_Mg2W
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.61
_cell_length_b   7.45
_cell_length_c   7.57
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg2W
_chemical_formula_sum   'Mg4 W2'
_cell_volume   147.59
_cell_formula_units_Z   2
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  0.58  0.57  1.0
  Mg  Mg1  1  0.0  0.88  0.01  1.0
  Mg  Mg2  1  0.31  0.6  0.78  1.0
  Mg  Mg3  1  0.31  0.85  0.8  1.0
  W  W4  1  0.0  0.0  0.0  1.0
  W  W5  1  0.31  0.73  0.79  1.0

Mg Mg Mg Mg W W