AM_Hydroniumjarosite_3 Formula: K.35 H6.65 Fe3 S2 O14 Name: Hydroniumjarosite Unit cell: 7.3373 7.3373 17.103 90.0 90.0 120.0 , V=797.40 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: synthetic, Sample: D