data_[Mg1Ni2S4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Ni  1.9100  1.3500  0.7400
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [P-6m2]
_cell_length_a [3.8102]
_cell_length_b [3.8102]
_cell_length_c [10.9202]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [187]
_chemical_formula_structural [Mg(NiS2)2]
_chemical_formula_sum '[Mg1 Ni2 S4]'
_cell_volume [137.2966]
_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  0.0000  0.0000  0.0000  1
  Ni  Ni1  1  0.3333  0.6667  0.0000  1
  Ni  Ni2  1  0.6667  0.3333  0.5000  1
  S  S3  2  0.3333  0.6667  0.4061  1
  S  S4  2  0.6667  0.3333  0.8667  1
]