AM_Davyne_3 Formula: Na2.61 Ca K.39 Si3 Al3 O14 Cl S.5 Name: Davyne Unit cell: 12.773 12.773 5.334 90.0 90.0 120.0 , V=753.65 Space group: P63 (173)

Rozenberg K A , Rastsvetaeva R K , Chukanov N V , Crystallography Reports , 54 (2009) p.793-799, Crystal structures of oxalate-bearing cancrinite with an unusual, arrangement of CO3 groups and sulfate-rich davyne, Locality: Sar-e Sang mine, Badakhshan, Afghanistan