Definition
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar
Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age
History
Origin
Tamil Nadu, India
Western Australia, Minnesota
Discoverer
T. H. Holland
Johann Gottlob Lehmann
Etymology
From Job Charnock, an administtrator of East India Company
From its formation process
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Plutonic
-
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock