AM_Davyne_2 Formula: K.87 Na2.13 Ca Al3 Si3 S.333 O13.333 Cl1.333 Name: Davyne Unit cell: 12.705 12.705 5.368 90.0 90.0 120.0 , V=750.40 Space group: P63/M (176)

Bonaccorsi E , Merlino S , Pasero M , Neues Jahrbuch fur Mineralogie, Monatshefte , 1990 (1990) p.97-112, Davyne: its structural relationships with cancrinite and vishnevite, Locality: Monte Somma, Vesuvius, Italy