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: I _database_code_amcsd 0004437 7.30293 7.30293 17.2043 90 90 120 R-3m atom x y z occ Biso K 0 0 0 .95 1.04 H3O 0 0 0 .05 1.04 Fe 1/6 -1/6 -1/6 1.8 S 0 0 .3088 1.15 O1 0 0 .3939 1.8 O2 .2211 -.2211 -.0544 1.52 O3 .1252 -.1252 .1344 .80 H .1863 -.1863 .1289 2