AM_Jarosite_4 Formula: K.95 H6.05 Fe3 S2 O14 Name: Jarosite Unit cell: 7.30293 7.30293 17.2043 90.0 90.0 120.0 , V=794.62 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: I