AM_Filatovite Formula: (K.9 Na.1) (As1.1 Si.9) (Al1.9 Zn.1) O8 Name: Filatovite Unit cell: 8.772 13.37 14.69 90.0 115.944 90.0 , V=1549.24 Space group: I12/C1 (15)

Filatov S K , Krivovichev S V , Burns P C , Vergasova L P , European Journal of Mineralogy , 16 (2004) p.537-543, Crystal structure of filatovite, K[(Al,Zn)2(As,Si)2O8],, the first arsenate of the feldspar group