data_global _chemical_name_mineral 'Chukanovite' loop_ _publ_author_name 'Pekov I V' 'Perchiazzi N' 'Merlino S' 'Kalachev V N' 'Merlini M' 'Zadov A E' _journal_name_full 'European Journal of Mineralogy' _journal_volume 19 _journal_year 2007 _journal_page_first 891 _journal_page_last 898 _publ_section_title ; Chukanovite, Fe2(CO3)(OH)2, a new mineral from the weathered iron meteorite Dronino ; _database_code_amcsd 0007252 _chemical_compound_source 'Dronino meteorite, Dronino village, Kasimov district, Ryazan Oblast, Russia' _chemical_formula_sum 'Fe2 C O5 H2' _cell_length_a 12.396 _cell_length_b 9.407 _cell_length_c 3.2152 _cell_angle_alpha 90 _cell_angle_beta 97.78 _cell_angle_gamma 90 _cell_volume 371.471 _exptl_crystal_density_diffrn 3.678 _symmetry_space_group_name_H-M 'P 1 21/a 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,z' '1/2-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 Fe1 0.21140 0.00050 0.97900 0.01418 Fe2 0.39830 0.76750 0.55400 0.01418 C 0.14300 -0.26500 0.49300 0.03800 O1 0.13900 -0.13500 0.36800 0.02026 O2 0.23300 -0.33200 0.54600 0.02026 O3 0.05500 -0.32800 0.55600 0.02026 O-H4 0.37900 0.90000 0.05800 0.02026 O-H5 0.42700 0.61900 0.13200 0.02026