AM_Davyne Formula: O12 (Al3.09 Si2.91) Cl Ca Na1.65 K.84 Name: Davyne Unit cell: 12.854 12.854 5.357 90.0 90.0 120.0 , V=766.53 Space group: P63 (173)

Hassan I , Grundy H D , The Canadian Mineralogist , 28 (1990) p.341-349, Structure of davyne and implications for stacking faults, Sample BM1907,210