data_global _chemical_name_mineral 'Hydrocerussite' loop_ _publ_author_name 'Martinetto P' 'Anne M' 'Dooryhee E' 'Walter P' 'Tsoucaris G' _journal_name_full 'Acta Crystallographica, Section C' _journal_volume 58 _journal_year 2002 _journal_page_first i82 _journal_page_last i84 _publ_section_title ; Synthetic hydrocerussite, 2PbCO3*Pb(OH)2 by X-ray powder diffraction ; _database_code_amcsd 0010324 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Pb1.5 C O4 H' _cell_length_a 5.2465 _cell_length_b 5.2465 _cell_length_c 23.702 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 565.008 _exptl_crystal_density_diffrn 6.839 _symmetry_space_group_name_H-M 'R -3 m' loop_ _space_group_symop_operation_xyz 'x,y,z' '2/3+x,1/3+y,1/3+z' '1/3+x,2/3+y,2/3+z' 'x,x-y,z' '2/3+x,1/3+x-y,1/3+z' '1/3+x,2/3+x-y,2/3+z' 'y,x,-z' '2/3+y,1/3+x,1/3-z' '1/3+y,2/3+x,2/3-z' '-x+y,y,z' '2/3-x+y,1/3+y,1/3+z' '1/3-x+y,2/3+y,2/3+z' '-x,-x+y,-z' '2/3-x,1/3-x+y,1/3-z' '1/3-x,2/3-x+y,2/3-z' '-y,-x,z' '2/3-y,1/3-x,1/3+z' '1/3-y,2/3-x,2/3+z' 'x-y,-y,-z' '2/3+x-y,1/3-y,1/3-z' '1/3+x-y,2/3-y,2/3-z' 'y,-x+y,-z' '2/3+y,1/3-x+y,1/3-z' '1/3+y,2/3-x+y,2/3-z' '-x+y,-x,z' '2/3-x+y,1/3-x,1/3+z' '1/3-x+y,2/3-x,2/3+z' '-x,-y,-z' '2/3-x,1/3-y,1/3-z' '1/3-x,2/3-y,2/3-z' '-y,x-y,z' '2/3-y,1/3+x-y,1/3+z' '1/3-y,2/3+x-y,2/3+z' 'x-y,x,-z' '2/3+x-y,1/3+x,1/3-z' '1/3+x-y,2/3+x,2/3-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv Pb1 0.00000 0.00000 0.21510 1.00000 0.01720 Pb2 0.91580 -0.91580 0.00160 0.16667 0.02150 C 0.00000 0.00000 0.43040 1.00000 0.02800 O1 0.85680 -0.85680 0.43180 1.00000 0.02800 O-H2 -0.29300 0.29300 0.02000 0.33333 0.01000