AM_Hydronium jarosite Formula: H6.92 Fe3 S2 O14 Name: Hydronium jarosite Unit cell: 7.3552 7.3552 16.9945 90.0 90.0 120.0 , V=796.21 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: A