data_MgTa2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.74
_cell_length_b   4.74
_cell_length_c   2.9
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgTa2
_chemical_formula_sum   'Mg1 Ta2'
_cell_volume   56.4
_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
  Ta  Ta1  1  0.0  0.74  0.45  1.0
  Ta  Ta2  1  0.37  0.37  0.45  1.0

data_MgTa2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.9
_cell_length_b   4.74
_cell_length_c   4.74
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgTa2
_chemical_formula_sum   'Mg1 Ta2'
_cell_volume   56.4
_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
  Ta  Ta1  1  0.45  0.0  0.74  1.0
  Ta  Ta2  1  0.45  0.37  0.37  1.0

Mg Ta Ta