data_LiMgCu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.26
_cell_length_b   5.26
_cell_length_c   5.26
_cell_angle_alpha   144.86
_cell_angle_beta   144.86
_cell_angle_gamma   50.55
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LiMgCu
_chemical_formula_sum   'Li1 Mg1 Cu1'
_cell_volume   47.97
_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
  Li  Li1  1  0.0  0.0  0.15  1.0
  Mg  Mg2  1  0.0  0.0  0.27  1.0
  Cu  Cu0  1  0.0  0.0  0.1  1.0

data_LiMgCu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.49
_cell_length_b   4.49
_cell_length_c   5.26
_cell_angle_alpha   90.0
_cell_angle_beta   115.27
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   LiMgCu
_chemical_formula_sum   'Li2 Mg2 Cu2'
_cell_volume   95.94
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Li  Li0  2  0.15  0.0  0.15  1.0
  Mg  Mg1  2  0.27  0.0  0.27  1.0
  Cu  Cu2  2  0.1  0.0  0.1  1.0

Li Mg Cu
Li Mg Cu 0 2 o o o 0 1 o o o 