Definition
Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).
An iron rich extrusive rock found as a member of the alkali basalt magma series
History
Origin
Brazil
Isle of Mull, Scotland
Discoverer
Unknown
Ben More
Etymology
from French néphéline, from Greek nephelē
From the name of discoverer, Ben More
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Plutonic
Volcanic
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock