data_global _chemical_name_mineral 'Aurichalcite' loop_ _publ_author_name 'Harding M M' 'Kariuki B M' 'Cernik R' 'Cressey G' _journal_name_full 'Acta Crystallographica, Section B' _journal_volume 50 _journal_year 1994 _journal_page_first 673 _journal_page_last 676 _publ_section_title ; The structure of aurichalcite, (Cu,Zn)5(OH)6(CO3)2, determined from a microcrystal ; _database_code_amcsd 0009883 _chemical_formula_sum 'Cu2 Zn3 (O12 C2) H6' _cell_length_a 13.82 _cell_length_b 6.419 _cell_length_c 5.29 _cell_angle_alpha 90 _cell_angle_beta 101.04 _cell_angle_gamma 90 _cell_volume 460.594 _exptl_crystal_density_diffrn 3.932 _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_occupancy _atom_site_U_iso_or_equiv Cu1 0.23710 0.75000 0.92820 0.50000 0.00900 Zn1 0.23710 0.75000 0.92820 0.50000 0.00900 Cu2 0.24780 0.49720 0.42060 0.50000 0.00900 Zn2 0.24780 0.49720 0.42060 0.50000 0.00900 Zn3 0.12420 0.25000 0.86550 1.00000 0.00900 Cu4 0.39130 0.25000 0.88390 0.50000 0.00900 Zn4 0.39130 0.25000 0.88390 0.50000 0.00900 O-H1 0.31150 0.75000 0.29900 1.00000 0.00600 O-H2 0.32820 0.98270 0.76070 1.00000 0.00400 O-H3 0.18040 0.25000 0.54460 1.00000 0.00700 O-H4 0.16170 0.00090 0.07110 1.00000 0.01200 C1 0.44490 0.25000 0.36530 1.00000 ? O11 0.35150 0.25000 0.29810 1.00000 0.01800 O12 0.48630 0.25000 0.60910 1.00000 0.04000 O13 0.50090 0.25000 0.19640 1.00000 0.01100 C2 0.05360 0.75000 0.51410 1.00000 ? O21 0.15210 0.75000 0.59160 1.00000 0.00800 O22 0.01830 0.75000 0.27370 1.00000 0.00700 O23 0.00600 0.75000 0.69900 1.00000 0.02200