Hydroniumjarosite Basciano L C, Peterson R C American Mineralogist 93 (2008) 853-862 Crystal chemistry of the natrojarosite-jarosite and natrojarosite-hydronium jarosite solid-solution: A synthetic study with full Fe site occupancy Locality: synthetic Sample: S _database_code_amcsd 0004579 7.33876 7.33876 16.8105 90 90 120 R-3m atom x y z occ Biso Na 0 0 0 .49 5.4 H3O 0 0 0 .51 5.4 Fe .166667 -.166667 -.16667 1.66 S 0 0 .3099 1.44 O1 0 0 .3990 1.4 O2 .2235 -.2235 -.0535 1.9 O3 .1255 -.1255 .1320 .42 H .166 -.166 .166 2