Hydronium jarosite Basciano L C, Peterson R C American Mineralogist 92 (2007) 1464-1473 Jarosite - hydronium jarosite solid solution series with full iron occupancy: Mineralogy and crystal chemistry Locality: synthetic Sample: B _database_code_amcsd 0004430 7.3521 7.3521 17.0108 90 90 120 R-3m atom x y z occ Biso K 0 0 0 .10 4.1 H3O 0 0 0 .86 4.1 Fe 1/6 -1/6 -1/6 2.55 S 0 0 .3098 2.0 O1 0 0 .3955 7.0 O2 .2255 -.2255 -.0574 2.5 O3 .1265 -.1265 .1350 .19 H .186 -.186 .125 2