data_global _chemical_name_mineral 'Allochalcoselite' loop_ _publ_author_name 'Krivovichev S V' 'Filatov S K' 'Burns P C' 'Vergasova L P' _journal_name_full 'The Canadian Mineralogist' _journal_volume 44 _journal_year 2006 _journal_page_first 507 _journal_page_last 514 _publ_section_title ; The crystal structure of allochalcoselite, Cu+Cu2+5PbO2(SeO3)2Cl5, a mineral with well-defined Cu+ and Cu2+ positions ; _database_code_amcsd 0006091 _chemical_compound_source 'fumaroles of the Great Tolbachik fissure eruption, Kamchatka Peninsula, Russia' _chemical_formula_sum 'Cu6 Pb Se2 O8 Cl5' _cell_length_a 18.468 _cell_length_b 6.1475 _cell_length_c 15.314 _cell_angle_alpha 90 _cell_angle_beta 119.284 _cell_angle_gamma 90 _cell_volume 1516.443 _exptl_crystal_density_diffrn 4.606 _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 Cu1 0.98610 0.24620 0.74348 0.01360 Cu2 0.93169 0.00000 0.53430 0.01960 Cu3 0.93998 0.50000 0.04550 0.01530 Cu4 0.64740 0.00000 0.83060 0.01970 Cu5 0.50000 0.00000 0.50000 0.02910 Cu6 0.00000 0.00000 0.00000 0.04270 Pb 0.79657 0.00000 0.63877 0.01520 Se1 0.12845 0.00000 0.70903 0.01130 Se2 0.85671 0.50000 0.79940 0.01180 O1 0.88290 0.71340 0.75110 0.01600 O2 0.09460 0.21540 0.74680 0.02200 O3 0.94010 0.50000 0.91840 0.01600 O4 0.93170 0.00000 0.65820 0.01100 O5 0.04010 0.50000 0.82110 0.01200 O6 0.05510 0.00000 0.58670 0.02600 Cl1 0.69820 0.00000 0.00820 0.02220 Cl2 0.58650 0.00000 0.44620 0.03120 Cl3 0.78860 0.00000 0.43880 0.02210 Cl4 0.76130 0.00000 0.81500 0.02750 Cl5 0.06230 0.00000 0.91980 0.03140 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Cu1 0.00940 0.01660 0.01550 -0.00190 0.00670 -0.00420 Cu2 0.00940 0.04370 0.00700 0.00000 0.00500 0.00000 Cu3 0.00840 0.02960 0.00750 0.00000 0.00350 0.00000 Cu4 0.01450 0.02840 0.02220 0.00000 0.01370 0.00000 Cu5 0.02400 0.03200 0.03200 0.00000 0.01500 0.00000 Cu6 0.06400 0.03800 0.04200 0.00000 0.03800 0.00000 Pb 0.00890 0.02170 0.01340 0.00000 0.00420 0.00000 Se1 0.00530 0.01920 0.00930 0.00000 0.00340 0.00000 Se2 0.00710 0.01890 0.01000 0.00000 0.00470 0.00000 O1 0.01400 0.02300 0.01300 0.00000 0.00800 0.00100 O2 0.01600 0.02700 0.02800 -0.00400 0.01500 -0.00900 O3 0.01200 0.03100 0.00300 0.00000 0.00300 0.00000 O4 0.00900 0.01500 0.01300 0.00000 0.00800 0.00000 O5 0.00200 0.02400 0.00500 0.00000 -0.00100 0.00000 O6 0.01400 0.05600 0.00100 0.00000 -0.00200 0.00000 Cl1 0.00800 0.04100 0.01200 0.00000 0.00100 0.00000 Cl2 0.02800 0.03900 0.02400 0.00000 0.01100 0.00000 Cl3 0.01300 0.03600 0.01900 0.00000 0.00800 0.00000 Cl4 0.01700 0.04400 0.02600 0.00000 0.01300 0.00000 Cl5 0.04000 0.03200 0.01600 0.00000 0.00900 0.00000