Definition
Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar
History
Origin
Germany
Tamil Nadu, India
Discoverer
Christian Leopold von Buch
T. H. Holland
Etymology
From Greek di + base
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
Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock