AM_Nepheline_23 Formula: K.57 Na3.24 (Al3.84 Si4.16) O16 Name: Nepheline Unit cell: 9.9867 9.9861 8.3697 90.0 90.0 120.0 , V=722.87 Space group: P63 (173)

Angel R J , Gatta G C , Boffa Ballaran T , Carpenter M A , The Canadian Mineralogist , 46 (2008) p.1465-1476, The mechanism of coupling in the modulated structure of nepheline, Locality: Snipe River, Tambani, Malawi, Note: annealed, Note: T = 298 K