AM_Jarosite_7 Formula: K.84 H6.16 Fe2.73 S2 O14 Name: Jarosite Unit cell: 7.3128 7.3128 17.1973 90.0 90.0 120.0 , V=796.45 Space group: R-3M (166)

Basciano L C , Peterson R C , American Mineralogist , 92 (2007) p.1464-1473, Jarosite - hydronium jarosite solid solution series with, full iron occupancy: Mineralogy and crystal chemistry, Locality: Rio Tonto, Huelva, Spain, Sample: 7-11-3-8, Note: could not reproduce reported bond lengths