Definition
Breccia is a rock consisting of angular fragments of stones which are cemented by finer calcareous material
Pyrolite is an igneous rock consisting of about three parts of peridotite and one part of basalt
History
Origin
England
Pike County, U.S
Discoverer
Unknown
Unknown
Etymology
From Italian, literally gravel, Germanic origin and related to break
From the chemical and mineralogical composition of the upper mantle of the Earth
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
Plutonic
Other Categories
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock