Definition
Carbonatite is intrusive or extrusive igneous rock which is defined by mineralogic composition, consisting of greater than 50 percent carbonate minerals
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar
History
Origin
Tanzania
Tamil Nadu, India
Discoverer
Unknown
T. H. Holland
Etymology
From any intrusive igneous rock, having a majority of carbonate minerals
From Job Charnock, an administtrator of East India Company
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Hard Rock
Family
Group
Plutonic
Plutonic
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock