Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).
from French néphéline, from Greek nephelē
Fine Grained Rock, Opaque Rock
Define Nephelinite
Nephelinite is one of the important type of rocks. If we have to define Nephelinite in general, Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).. Nephelinite comes under Igneous Rocks. All Igneous Rocks have similar properties and formation process. Along with Nephelinite Definition, know more about the History of Nephelinite, Etymology of Nephelinite in next sections.