data_global _chemical_name_mineral 'Chloroxiphite' loop_ _publ_author_name 'Finney J J' 'Graeber E J' 'Rosenzweig A' 'Hamilton R D' _journal_name_full 'Mineralogical Magazine' _journal_volume 41 _journal_year 1977 _journal_page_first 357 _journal_page_last 361 _publ_section_title ; The structure of chloroxiphite, Pb3CuO2(OH)2Cl2 ; _database_code_amcsd 0014466 _chemical_compound_source 'Mendip Hills, Somerset, England' _chemical_formula_sum 'Pb3 Cu O4 Cl2 H2' _cell_length_a 10.458 _cell_length_b 5.750 _cell_length_c 6.693 _cell_angle_alpha 90 _cell_angle_beta 97.79 _cell_angle_gamma 90 _cell_volume 398.759 _exptl_crystal_density_diffrn 6.847 _symmetry_space_group_name_H-M 'P 1 21/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,z' '-x,1/2+y,-z' '-x,-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 0.21670 0.25000 0.46060 0.01811 Pb2 0.55020 0.25000 0.34320 0.01697 Pb3 0.67410 0.25000 0.86730 0.01710 Cu 0.00000 0.00000 0.00000 0.02039 O1 0.36600 0.00000 0.38600 0.01672 O-H1 0.90700 0.25000 0.83200 0.01735 O-H2 0.12600 0.25000 0.08600 0.02178 Cl1 0.37800 0.25000 0.86800 0.02128 Cl2 0.88600 0.25000 0.32100 0.03090