Definition
Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle
Breccia is a rock consisting of angular fragments of stones which are cemented by finer calcareous material
History
Origin
Pike County, U.S
England
Discoverer
Unknown
Unknown
Etymology
From French, from peridot + -ite
From Italian, literally gravel, Germanic origin and related to break
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
Plutonic
-
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Medium Grained Rock, Opaque Rock