data_9009285 _chemical_name 'Jarosite' loop_ _publ_author_name 'Menchetti S' 'Sabelli C' _journal_name_full "Neues Jahrbuch fur Mineralogie, Monatshefte" _journal_volume 1976 _journal_year 1976 _journal_page_first 406 _journal_page_last 417 _publ_section_title ; Crystal chemistry of the alunite series: crystal structure refinement of alunit and synthetic jarosite Note: none of the reported bond lengths can be reproduced Locality: synthetic ; _chemical_formula_sum 'K Fe3 S2 O14 H6' _cell_length_a 7.315 _cell_length_b 7.315 _cell_length_c 17.224 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 798.166 _symmetry_space_group_name_H-M 'R -3 m' loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '2/3+x,1/3+y,1/3+z' '1/3+x,2/3+y,2/3+z' 'x,x-y,z' '2/3+x,1/3+x-y,1/3+z' '1/3+x,2/3+x-y,2/3+z' 'y,x,-z' '2/3+y,1/3+x,1/3-z' '1/3+y,2/3+x,2/3-z' '-x+y,y,z' '2/3-x+y,1/3+y,1/3+z' '1/3-x+y,2/3+y,2/3+z' '-x,-x+y,-z' '2/3-x,1/3-x+y,1/3-z' '1/3-x,2/3-x+y,2/3-z' '-y,-x,z' '2/3-y,1/3-x,1/3+z' '1/3-y,2/3-x,2/3+z' 'x-y,-y,-z' '2/3+x-y,1/3-y,1/3-z' '1/3+x-y,2/3-y,2/3-z' 'y,-x+y,-z' '2/3+y,1/3-x+y,1/3-z' '1/3+y,2/3-x+y,2/3-z' '-x+y,-x,z' '2/3-x+y,1/3-x,1/3+z' '1/3-x+y,2/3-x,2/3+z' '-x,-y,-z' '2/3-x,1/3-y,1/3-z' '1/3-x,2/3-y,2/3-z' '-y,x-y,z' '2/3-y,1/3+x-y,1/3+z' '1/3-y,2/3+x-y,2/3+z' 'x-y,x,-z' '2/3+x-y,1/3+x,1/3-z' '1/3+x-y,2/3+x,2/3-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_Uiso_or_equiv K 0.00000 0.00000 0.00000 0.02508 Fe 0.00000 0.50000 0.50000 0.01672 S 0.00000 0.00000 0.30883 0.01558 O1 0.00000 0.00000 0.39356 0.01583 O2 0.22338 -0.22338 -0.05448 0.01887 O-h 0.12682 -0.12682 0.13573 0.01849 H 0.16900 -0.16900 0.10600 0.11335