data_K2CaPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.18
_cell_length_b   10.18
_cell_length_c   10.18
_cell_angle_alpha   157.73
_cell_angle_beta   149.8
_cell_angle_gamma   37.84
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2CaPb
_chemical_formula_sum   'K2 Ca1 Pb1'
_cell_volume   201.08
_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  K1  1  0.0  0.65  0.19  1.0
  K  K2  1  0.97  0.0  0.45  1.0
  Ca  Ca0  1  0.0  0.0  0.0  1.0
  Pb  Pb3  1  0.0  0.0  0.63  1.0

data_K2CaPb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.93
_cell_length_b   5.31
_cell_length_c   10.18
_cell_angle_alpha   105.1
_cell_angle_beta   101.13
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2CaPb
_chemical_formula_sum   'K2 Ca1 Pb1'
_cell_volume   201.08
_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  K0  1  0.52  0.55  0.52  1.0
  K  K1  1  0.81  0.46  0.46  1.0
  Ca  Ca2  1  0.0  0.0  0.0  1.0
  Pb  Pb3  1  0.37  0.37  0.37  1.0

K K Ca Pb