data_KZrHg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.7
_cell_length_b   5.7
_cell_length_c   3.11
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.6
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KZrHg2
_chemical_formula_sum   'K1 Zr1 Hg2'
_cell_volume   101.13
_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
  K  K2  1  0.0  0.0  0.0  1.0
  Zr  Zr3  1  0.01  0.0  0.0  1.0
  Hg  Hg0  1  0.0  0.97  0.56  1.0
  Hg  Hg1  1  0.0  0.03  0.56  1.0

data_KZrHg2
_symmetry_space_group_name_H-M   Pm
_cell_length_a   3.11
_cell_length_b   5.7
_cell_length_c   5.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   KZrHg2
_chemical_formula_sum   'K1 Zr1 Hg2'
_cell_volume   101.13
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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
  K  K0  1  0.0  0.0  0.0  1.0
  Zr  Zr1  1  -0.0  0.0  0.01  1.0
  Hg  Hg2  2  0.56  0.03  0.0  1.0

K Zr Hg Hg
K Zr Hg Hg 0 1 o o o 2 3 o + o 