data_global
_chemical_name_mineral 'Matlockite'
loop_
_publ_author_name
'Nieuwenkamp W'
'Bijvoet J'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 81 
_journal_year 1932
_journal_page_first 469
_journal_page_last 473
_publ_section_title
;
 Die Kristallstruktur von Bleifluochlorid Pb F Cl
 _cod_database_code 1011046
;
_database_code_amcsd 0017948
_chemical_formula_sum 'Pb Cl F'
_cell_length_a 4.09
_cell_length_b 4.09
_cell_length_c 7.21
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 120.610
_exptl_crystal_density_diffrn      7.205
_symmetry_space_group_name_H-M 'P 4/n m m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2-y,1/2-x,z'
  'y,x,-z'
  'y,-x,-z'
  '1/2-y,1/2+x,z'
  'x,-y,z'
  '1/2-x,1/2+y,-z'
  '1/2+x,1/2+y,-z'
  '-x,-y,z'
  '1/2+y,1/2+x,z'
  '-y,-x,-z'
  '-y,x,-z'
  '1/2+y,1/2-x,z'
  '-x,y,z'
  '1/2+x,1/2-y,-z'
  '1/2-x,1/2-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Pb1   0.00000   0.50000   0.20500
Cl1   0.00000   0.50000   0.65000
F1   0.50000   0.50000   0.00000