"NMZGB"@en . "Nepheline-monzogabbro"@en . "Nepheline-monzogabbro - A foid-monzogabbro in which the dominant feldspathoid mineral is nepheline. British Geological Survey Research Report RR/99/06, section 5.1 and fig. 9."@en . "stable"@en . . . . "Nepheline-monzogabbro"@en . . .