data_global _chemical_name_mineral 'Ferronigerite-2N1S' loop_ _publ_author_name 'Arakcheeva A V' 'Pushcharovskii D Y' 'Rastsvetaeva R K' 'Kashaev A A' 'Nadezhina T N' _journal_name_full 'Kristallografiya' _journal_volume 40 _journal_year 1995 _journal_page_first 639 _journal_page_last 644 _publ_section_title ; Crystal structure of nigerite-6H ; _database_code_amcsd 0018796 _chemical_compound_source 'Eastern Siberia, Irkutsk, Russia' _chemical_formula_sum 'Al8.435 Fe.83 Zn.36 Sn O15 H' _cell_length_a 5.717 _cell_length_b 5.717 _cell_length_c 13.80 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 390.612 _exptl_crystal_density_diffrn 5.588 _symmetry_space_group_name_H-M 'P -3 m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '-y,-x,z' 'y,-x+y,-z' '-x,-x+y,-z' '-x+y,-x,z' '-x+y,y,z' '-x,-y,-z' 'y,x,-z' '-y,x-y,z' 'x,x-y,z' 'x-y,x,-z' 'x-y,-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 AlM1 0.00000 0.00000 0.50000 1.00000 0.00443 AlM2 0.16910 0.33770 0.33060 1.00000 0.00456 AlT1 0.66667 0.33333 0.45380 0.20000 0.00646 FeT1 0.66667 0.33333 0.45380 0.44000 0.00646 ZnT1 0.66667 0.33333 0.45380 0.36000 0.00646 AlT2 0.00000 0.00000 0.12350 0.61000 0.00532 FeT2 0.00000 0.00000 0.12350 0.39000 0.00532 AlM3 0.50000 0.00000 0.00000 0.75000 0.00773 Sn 0.66667 0.33333 0.18720 1.00000 0.00507 O1 0.29380 0.14710 0.41280 1.00000 0.00811 O2 0.33333 0.66667 0.40270 1.00000 0.00659 O3 0.00000 0.00000 0.25920 1.00000 0.00545 O4 0.01210 0.50610 0.26040 1.00000 0.00659 O5 0.33333 0.66667 0.07010 1.00000 0.00785 O6 0.35180 0.17590 0.08460 1.00000 0.01254 H 0.33333 0.66667 0.14000 1.00000 0.01267