AM_Yavapaiite Formula: Fe K S2 O8 Name: Yavapaiite Unit cell: 8.152 5.153 7.877 90.0 94.9 90.0 , V=329.68 Space group: C12/M1 (12)

Graeber E J , Rosenzweig A , American Mineralogist , 56 (1971) p.1917-1933, The crystal structures of yavapaiite, KFe(SO4)2, and goldichite, KFe(SO4)2.4H2O