AM_Nepheline_7 Formula: K.54 Na3.24 Ca.03 Al4 Si4 O16 Name: Nepheline Unit cell: 9.7178 9.7178 8.203 90.0 90.0 120.0 , V=670.87 Space group: P63 (173)

Gatta G D , Angel R J , American Mineralogist , 92 (2007) p.1446-1455, Elastic behavior and pressure-induced structural evolution of nepheline:, Implications for the nature of the modulated superstructure, Locality: intrusive aplite of Snipe River, Tambani, Nyasaland, Malawi, Sample: P = 4.130 GPa