AM_Davyne_1 Formula: O13.72 Si3 Al3 Cl Ca.97 Na1.53 K1.29 S.25 Name: Davyne Unit cell: 12.793 12.793 5.367 90.0 90.0 120.0 , V=760.69 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 1469