AM_Destinezite Formula: (Fe1.773 Al.227) P S O15 H13 Name: Destinezite Unit cell: 9.57 9.716 7.313 98.74 107.9 63.86 , V=580.77 Space group: P-1 (2)

Peacor D R , Rouse R C , Coskren T D , Essene E J , Clays and Clay Minerals , 47 (1999) p.1-11, Destinezite ( diadochite ), Fe2(PO4)(SO4)(OH)*6(H2O):, its crystal structure and role as a soil mineral at Alum Cave Bluff,Tennessee, Locality: Alum Cave Bluff, Tennessee, USA