data_KCaBi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.07
_cell_length_b   6.07
_cell_length_c   6.07
_cell_angle_alpha   129.35
_cell_angle_beta   129.35
_cell_angle_gamma   74.44
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KCaBi2
_chemical_formula_sum   'K1 Ca1 Bi2'
_cell_volume   130.44
_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  K3  1  0.0  0.0  0.0  1.0
  Ca  Ca2  1  0.0  0.0  0.83  1.0
  Bi  Bi0  1  0.6  0.0  0.42  1.0
  Bi  Bi1  1  0.0  0.6  0.42  1.0

data_KCaBi2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.35
_cell_length_b   7.35
_cell_length_c   6.07
_cell_angle_alpha   90.0
_cell_angle_beta   127.22
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   KCaBi2
_chemical_formula_sum   'K2 Ca2 Bi4'
_cell_volume   260.88
_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
  K  K0  2  0.0  0.0  0.0  1.0
  Ca  Ca1  2  0.0  0.0  0.83  1.0
  Bi  Bi2  4  0.2  0.8  0.82  1.0

K Ca Bi Bi
K Ca Bi Bi 0 1 o o - 1 2 - o o 1 3 o - o 