data_global _chemical_name_mineral 'Deerite' loop_ _publ_author_name 'Fleet M E' _journal_name_full 'American Mineralogist' _journal_volume 62 _journal_year 1977 _journal_page_first 990 _journal_page_last 998 _publ_section_title ; The crystal structure of deerite Note: sample is from a riebeckite-deerite-garnet schist near Panoche, San Benito County, California, USA ; _database_code_amcsd 0000599 _chemical_formula_sum 'Fe9 Si6 O25 H5' _cell_length_a 10.786 _cell_length_b 18.880 _cell_length_c 9.564 _cell_angle_alpha 90 _cell_angle_beta 107.45 _cell_angle_gamma 90 _cell_volume 1857.979 _exptl_crystal_density_diffrn 3.847 _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 0.32090 0.17560 0.02380 0.01393 Fe2 0.32090 0.17560 0.35720 0.01393 Fe3 0.32090 0.17560 0.69050 0.01393 Fe4 0.16690 0.30420 0.13880 0.01393 Fe5 0.16690 0.30420 0.47220 0.01393 Fe6 0.16690 0.30420 0.80550 0.01393 Fe7 0.04430 0.42900 0.26540 0.01267 Fe8 0.04430 0.42900 0.59870 0.01267 Fe9 0.04430 0.42900 0.93210 0.01267 Si1 0.25800 0.53250 0.17000 0.01773 Si2 0.25800 0.53250 0.83600 0.01773 Si3 0.36200 0.41560 0.37100 0.01393 Si4 0.36200 0.41560 0.70500 0.01393 Si5 0.48600 0.30570 0.24500 0.02026 Si6 0.48600 0.30570 0.91100 0.02026 O1 0.25300 0.11800 0.16400 0.01520 O-H2 0.25300 0.11800 0.49700 0.01520 O3 0.25300 0.11800 0.83000 0.01520 O4 0.13200 0.23000 0.29800 0.01520 O-H5 0.13200 0.23000 0.63100 0.01520 O6 0.13200 0.23000 0.96400 0.01520 O7 0.49200 0.13500 0.08000 0.01393 O8 0.49200 0.13500 0.41400 0.01393 O9 0.49200 0.13500 0.74700 0.01393 O10 0.35600 0.25000 0.20300 0.02406 O-H11 0.35600 0.25000 0.53600 0.02406 O12 0.35600 0.25000 0.87000 0.02406 O13 0.22200 0.37400 0.32300 0.01393 O14 0.22200 0.37400 0.65600 0.01393 O-H15 0.22200 0.37400 0.99000 0.01393 O16 0.11000 0.49800 0.12200 0.01267 O-H17 0.11000 0.49800 0.45500 0.01267 O18 0.11000 0.49800 0.78800 0.01267 O19 0.47100 0.34300 0.08300 ? O20 0.47700 0.37500 0.34600 ? O21 0.46600 0.36800 0.80100 ? O22 0.41400 0.43200 0.55100 ? O23 0.35400 0.49100 0.77500 ? O24 0.35600 0.49300 0.30300 ? O25 0.32100 0.51600 0.02300 ?