data_global _chemical_name_mineral 'Ferroericssonite' loop_ _publ_author_name 'Kampf A R' 'Roberts A C' 'Venance K E' 'Dunning G E' 'Walstrom R E' _journal_name_full 'The Canadian Mineralogist' _journal_volume 49 _journal_year 2011 _journal_page_first 587 _journal_page_last 594 _publ_section_title ; Ferroericssonite, the Fe2+ analogue of ericssonite, from eastern Fresno County, California, U.S.A. ; _database_code_amcsd 0018382 _chemical_compound_source 'Esquire #8 claim, Big Creek, eastern Fresno County, California, USA' _chemical_formula_sum 'Ba Fe3 Si2 O8.77 (Cl.23 H.77)' _cell_length_a 20.3459 _cell_length_b 7.0119 _cell_length_c 5.3879 _cell_angle_alpha 90 _cell_angle_beta 94.874 _cell_angle_gamma 90 _cell_volume 765.877 _exptl_crystal_density_diffrn 4.425 _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_occupancy _atom_site_U_iso_or_equiv Ba 0.22505 0.00000 0.24144 1.00000 0.00956 Fe1 0.00000 0.26153 0.00000 1.00000 0.01210 Fe2 0.00000 0.00000 0.50000 1.00000 0.01240 Fe3 0.00000 0.50000 0.50000 1.00000 0.01070 Fe4 0.14026 0.50000 0.21580 1.00000 0.00680 Si 0.13431 0.22566 0.71250 1.00000 0.00620 O-H1 0.05550 0.00000 0.18020 0.77000 0.03800 Cl1 0.05550 0.00000 0.18020 0.23000 0.03800 O2 0.15740 0.00000 0.71950 1.00000 0.01260 O3 0.05466 0.24550 0.68460 1.00000 0.00990 O4 0.16858 0.30900 0.97320 1.00000 0.01050 O5 0.16897 0.30920 0.47610 1.00000 0.01050 O6 0.04970 0.50000 0.19220 1.00000 0.01010 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 Ba 0.01130 0.00810 0.00930 0.00000 0.00105 0.00000 Fe1 0.01500 0.01260 0.00910 0.00000 0.00330 0.00000 Fe2 0.01470 0.01180 0.01060 0.00000 0.00040 0.00000 Fe3 0.01390 0.01060 0.00820 0.00000 0.00380 0.00000 Fe4 0.00880 0.00600 0.00570 0.00000 0.00070 0.00000 Si 0.00860 0.00520 0.00470 0.00050 0.00020 0.00020 O-H1 0.07300 0.02500 0.01700 0.00000 0.00600 0.00000 Cl1 0.07300 0.02500 0.01700 0.00000 0.00600 0.00000 O2 0.01200 0.00600 0.01900 0.00000 0.00210 0.00000 O3 0.00850 0.01110 0.01010 0.00150 0.00150 -0.00080 O4 0.01350 0.01030 0.00760 -0.00050 0.00080 -0.00070 O5 0.01250 0.01050 0.00860 0.00070 0.00130 0.00280 O6 0.00900 0.01100 0.01000 0.00000 0.00300 0.00000