AM_Argentojarosite
Formula: Ag (Fe2.88 Al.12) S2 O14 H6
Name: Argentojarosite
Unit cell: 7.3398 7.3398 16.538 90.0 90.0 120.0 , V=771.58
Space group: R-3M (166)

Groat L A , Jambor J L , Pemberton B C , The Canadian Mineralogist , 41 (2003) p.921-928, The crystal structure of argentojarosite, AgFe3(SO4)2(OH)6, Locality: Tintic Standard mine at Dividend, central Utah