data_global _chemical_name_mineral 'Friedelite' loop_ _publ_author_name 'Kato T' 'Watanabe I' _journal_name_full 'Yamaguchi University, College of Arts Bulletin' _journal_volume 26 _journal_year 1992 _journal_page_first 51 _journal_page_last 63 _publ_section_title ; The crystal structures of schallerite and friedelite ; _database_code_amcsd 0015711 _chemical_compound_source 'Aderville, France' _chemical_formula_sum 'Mn8 Si6 O24 Cl H9' _cell_length_a 23.28 _cell_length_b 13.44 _cell_length_c 7.428 _cell_angle_alpha 90 _cell_angle_beta 104.98 _cell_angle_gamma 90 _cell_volume 2245.115 _exptl_crystal_density_diffrn 3.067 _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_U_iso_or_equiv Mn1 0.00000 0.12360 0.00000 0.00595 Mn2 0.00000 0.37110 0.00000 0.01343 Mn3 0.12760 0.00000 0.01940 0.00887 Mn4 0.12680 0.24860 0.01000 0.00975 Mn5 0.12570 0.50000 -0.01320 0.01254 Mn6 0.25210 0.12460 0.01810 0.00798 Si1 0.20740 0.38660 0.37280 0.02710 Si2 0.32170 0.26740 0.37690 0.02305 Si3 0.44340 0.38250 0.36910 0.02685 O1 0.00000 0.16570 0.50000 0.10183 O2 0.06250 0.00000 0.57000 0.21708 O3 0.11470 0.16470 0.58600 0.15667 O4 0.16560 0.32870 0.49500 0.13058 O5 0.22500 0.16700 0.55300 0.09195 O6 0.28660 0.00000 0.58000 0.26723 O7 0.17870 0.37310 0.15530 0.00304 O8 0.30640 0.25040 0.15500 0.01127 O9 0.42670 0.37830 0.14450 0.00139 O-H1 0.05700 0.00000 0.17570 0.01393 O-H2 0.05650 0.24770 0.15960 0.00747 Cl3 0.06030 0.50000 0.22070 0.00747 O-H4 0.17670 0.12600 0.15010 0.00266 O-H5 0.30360 0.00000 0.15800 0.00963 O-H6 0.30510 0.50000 0.15710 0.00469 O-H7 0.42720 0.12570 0.14460 0.00532