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