data_global _chemical_name_mineral 'Ferronigerite-6N6S' loop_ _publ_author_name 'Grey I E' 'Gatehouse B M' _journal_name_full 'American Mineralogist' _journal_volume 64 _journal_year 1979 _journal_page_first 1255 _journal_page_last 1264 _publ_section_title ; The crystal structure of nigerite-24R ; _database_code_amcsd 0000754 _chemical_compound_source 'Mt Garnet, northern Queensland, Australia' _chemical_formula_sum 'Al7.45 Sn Fe1.4 Zn.7 O16 H' _cell_length_a 18.826 _cell_length_b 18.826 _cell_length_c 18.826 _cell_angle_alpha 17.508 _cell_angle_beta 17.508 _cell_angle_gamma 17.508 _cell_volume 527.035 _exptl_crystal_density_diffrn 4.415 _symmetry_space_group_name_H-M 'R -3 m' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-z,-y' '-z,-x,-y' 'y,x,z' 'y,z,x' '-z,-y,-x' '-x,-y,-z' 'x,z,y' 'z,x,y' '-y,-x,-z' '-y,-z,-x' 'z,y,x' 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 Al(1) 0.50000 0.00000 0.50000 0.70000 0.00304 Sn(2) 0.28684 0.28684 0.28684 1.00000 0.00393 Al(3) 0.03070 0.03070 0.03070 0.60000 0.00659 Fe(3) 0.03070 0.03070 0.03070 0.40000 0.00659 Al(4) 0.75013 0.75013 0.25328 1.00000 0.00443 Al(5) 0.12488 0.12488 0.12488 1.00000 0.00279 Fe(6) 0.53153 0.53153 0.53153 0.50000 0.00494 Zn(6) 0.53153 0.53153 0.53153 0.40000 0.00494 Al(6) 0.53153 0.53153 0.53153 0.10000 0.00494 Fe(7) 0.22047 0.22047 0.22047 0.50000 0.00836 Zn(7) 0.22047 0.22047 0.22047 0.30000 0.00836 Al(7) 0.22047 0.22047 0.22047 0.20000 0.00836 Al(8) 0.00000 0.00000 0.50000 1.00000 0.00418 O(1) 0.15580 0.15580 0.62570 1.00000 0.01191 O-H(2) 0.35040 0.35040 0.35040 1.00000 0.01153 O(3) 0.44200 0.44200 0.92130 1.00000 0.01241 O(4) 0.06440 0.06440 0.06440 1.00000 0.01115 O(5) 0.04390 0.04390 0.60260 1.00000 0.01039 O(6) 0.56660 0.56660 0.56660 1.00000 0.00329 O(7) 0.70560 0.70560 0.14670 1.00000 0.01229 O(8) 0.18440 0.18440 0.18440 1.00000 0.00912