data_MgMnNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.47
_cell_length_b   4.47
_cell_length_c   4.5
_cell_angle_alpha   99.74
_cell_angle_beta   99.74
_cell_angle_gamma   33.43
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgMnNi2
_chemical_formula_sum   'Mg1 Mn1 Ni2'
_cell_volume   48.75
_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  0.9  0.0  0.34  1.0
  Mn  Mn1  1  0.15  0.0  0.88  1.0
  Ni  Ni2  1  0.52  0.0  0.13  1.0
  Ni  Ni3  1  0.63  0.0  0.31  1.0

data_MgMnNi2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.57
_cell_length_b   4.47
_cell_length_c   4.5
_cell_angle_alpha   99.74
_cell_angle_beta   90.0
_cell_angle_gamma   106.72
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgMnNi2
_chemical_formula_sum   'Mg1 Mn1 Ni2'
_cell_volume   48.75
_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  0.1  0.66  1.0
  Mn  Mn1  1  0.0  0.85  0.12  1.0
  Ni  Ni2  1  0.0  0.37  0.69  1.0
  Ni  Ni3  1  0.0  0.48  0.87  1.0

Mg Mn Ni Ni