Definition
Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar
History
Origin
Pike County, U.S
Tamil Nadu, India
Discoverer
Unknown
T. H. Holland
Etymology
From French, from peridot + -ite
From Job Charnock, an administtrator of East India Company
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
Plutonic
Plutonic
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock