data_global
_chemical_name_mineral 'Lanarkite'
loop_
_publ_author_name
'Sahl K'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 132 
_journal_year 1970
_journal_page_first 99
_journal_page_last 117
_publ_section_title
;
 Zur kristallstruktur von lanarkit, Pb2O(SO4)
;
_database_code_amcsd 0010717
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Pb2 S O5'
_cell_length_a 13.769
_cell_length_b 5.698
_cell_length_c 7.079
_cell_angle_alpha 90
_cell_angle_beta 115.93
_cell_angle_gamma 90
_cell_volume 499.477
_exptl_crystal_density_diffrn      7.001
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,z'
  '1/2+x,1/2-y,z'
  '-x,y,-z'
  '1/2-x,1/2+y,-z'
  '-x,-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
_atom_site_U_iso_or_equiv
Pb1   0.14660   0.00000   0.10500   0.01646
Pb2   0.02580   0.50000   0.27150   0.01545
S   0.32900   0.50000   0.34400   0.01520
O1   0.11100   0.00000   0.42900   0.02660
O2   0.35500   0.71100   0.25100   0.02533
O3   0.21300   0.50000   0.28400   0.02533
O4   0.00000   0.24600   0.00000   0.02153