data_global _chemical_name_mineral 'Melanterite' loop_ _publ_author_name 'Peterson R C' _journal_name_full 'The Canadian Mineralogist' _journal_volume 41 _journal_year 2003 _journal_page_first 937 _journal_page_last 949 _publ_section_title ; The relatinship between Cu content and distortion in the atomic structure of melanterite from the Richmond mine, Iron Mountain, California Sample: mati-6 ; _database_code_amcsd 0005874 _chemical_compound_source 'Richmond mine, Iron Mountain, California' _chemical_formula_sum 'Fe.965 Zn.832 Cu.203 S2 O22 H28' _cell_length_a 14.073 _cell_length_b 6.510 _cell_length_c 10.954 _cell_angle_alpha 90 _cell_angle_beta 105.62 _cell_angle_gamma 90 _cell_volume 966.491 _exptl_crystal_density_diffrn 1.943 _symmetry_space_group_name_H-M 'P 1 21/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,1/2+z' '-x,1/2+y,1/2-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 Fe1 0.00000 0.00000 0.00000 0.96540 ? Zn1 0.00000 0.00000 0.00000 0.03460 ? Cu2 0.50000 0.00000 0.50000 0.20300 ? Zn2 0.50000 0.00000 0.50000 0.79700 ? S 0.77290 -0.02980 0.32390 1.00000 0.02769 O1 0.79650 -0.02990 0.46450 1.00000 0.03726 O2 0.86070 0.04030 0.28660 1.00000 0.04288 O3 0.68950 0.11250 0.27300 1.00000 0.04211 O4 0.74630 -0.23880 0.27490 1.00000 0.04054 Wat5 -0.11180 -0.11810 0.06960 1.00000 0.05959 Wat6 0.10060 -0.04390 0.18300 1.00000 0.04378 Wat7 -0.02940 0.29560 0.06850 1.00000 0.04009 Wat8 0.51920 -0.04640 0.32130 1.00000 0.04070 Wat9 0.43160 0.27880 0.44150 1.00000 0.04181 Wat10 0.35330 -0.14530 0.44110 1.00000 0.04206 Wat11 0.36450 0.00570 0.11560 1.00000 0.04212