data_[Na1Ca1In1Hg1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ca  1.0000  1.8000  1.1400
  In  1.7800  1.5500  0.9400
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Pmm2]
_cell_length_a [3.5231]
_cell_length_b [3.8644]
_cell_length_c [8.8784]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [25]
_chemical_formula_structural [NaCaInHg]
_chemical_formula_sum '[Na1 Ca1 In1 Hg1]'
_cell_volume [120.8763]
_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
[
  Na  Na0  1  0.5000  0.0000  0.0117  1
  Ca  Ca1  1  0.0000  0.0000  0.5282  1
  In  In2  1  0.5000  0.5000  0.2973  1
  Hg  Hg3  1  0.5000  0.5000  0.7387  1
]