Definition
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar
Kimberlite is a rare, blue-tinged, coarse-grained intrusive igneous rock, which sometimes contains diamonds and is mostly found in South Africa and Siberia.
History
Origin
Tamil Nadu, India
Kimberley, South Africa
Discoverer
T. H. Holland
John W. Judd
Etymology
From Job Charnock, an administtrator of East India Company
From Kimberley + -ite, from the name of the South African town of Kimberley where the rock was first found.
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Family
Group
Plutonic
Volcanic
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Opaque Rock