data_MgZnCu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.67
_cell_length_b   4.67
_cell_length_c   4.63
_cell_angle_alpha   99.64
_cell_angle_beta   99.64
_cell_angle_gamma   33.91
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgZnCu2
_chemical_formula_sum   'Mg1 Zn1 Cu2'
_cell_volume   55.5
_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  Mg2  1  0.06  0.0  0.27  1.0
  Zn  Zn3  1  0.64  0.0  0.44  1.0
  Cu  Cu0  1  0.0  0.0  0.0  1.0
  Cu  Cu1  1  0.49  0.0  0.13  1.0

data_MgZnCu2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.72
_cell_length_b   4.63
_cell_length_c   4.67
_cell_angle_alpha   99.64
_cell_angle_beta   106.96
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgZnCu2
_chemical_formula_sum   'Mg1 Zn1 Cu2'
_cell_volume   55.5
_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  0.27  0.06  1.0
  Zn  Zn1  1  0.0  0.44  0.64  1.0
  Cu  Cu2  1  0.0  0.0  0.0  1.0
  Cu  Cu3  1  0.0  0.13  0.49  1.0

Mg Zn Cu Cu