AM_Ammoniojarosite
Formula: N Fe3 S2 O14 H10
Name: Ammoniojarosite
Unit cell: 7.3177 7.3177 17.534 90.0 90.0 120.0 , V=813.13
Space group: R-3M (166)

Basciano L C , Peterson R C , Mineralogical Magazine , 71 (2007) p.427-441, The crystal structure of ammoniojarosite, (NH4)Fe3(SO4)2(OH)6 and the crystal chemistry, of the ammoniojarosite-hydronium jarosite solid-solution series, Locality: Synthetic