Definition
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar
History
Origin
Italy
Tamil Nadu, India
Discoverer
Unknown
T. H. Holland
Etymology
Comendite derives its name from the area of Le Commende on San Pietro Island in Italy
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
Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock