Definition
Breccia is a rock consisting of angular fragments of stones which are cemented by finer calcareous material
Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).
History
Origin
England
Brazil
Discoverer
Unknown
Unknown
Etymology
From Italian, literally gravel, Germanic origin and related to break
from French néphéline, from Greek nephelē
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Family
Group
-
Plutonic
Other Categories
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock