AM_Farneseite Formula: Na17.826 Ca4.26 K4.59 Al21 Si21 S5.366 O111.512 Cl.24 F.078 H10 Name: Farneseite Unit cell: 12.8784 12.8784 37.0078 90.0 90.0 120.0 , V=5315.54 Space group: P63/M (176)

Camara F , Bellatreccia F , Della Ventura G , Mottana A , European Journal of Mineralogy , 17 (2005) p.839-846, Farneseite, a new mineral of the cancrinite - sodalite group, with a 14-layer stacking sequence: occurence and crystal structure, Locality: Latera Caldera, Farnese, Viterbo Province, Italy