AM_Hydroniumjarosite_1 Formula: K.1 H6.86 Fe3 S2 O14 Name: Hydroniumjarosite Unit cell: 7.3521 7.3521 17.0108 90.0 90.0 120.0 , V=796.30 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: B