Definition
Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).
Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt
History
Origin
Brazil
Germany
Discoverer
Unknown
Christian Leopold von Buch
Etymology
from French néphéline, from Greek nephelē
From Latin glaber bare, smooth, bald
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Family
Group
Plutonic
Plutonic
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock