Definition
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar
Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature
History
Origin
Tamil Nadu, India
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Discoverer
T. H. Holland
René Just Haüy
Etymology
From Job Charnock, an administtrator of East India Company
From French, Greek eklogē selection with reference to the selective content of the rock + -ite1
Class
Igneous Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Plutonic
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Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock