Definition
Icelandite belongs to volcanic igneous rocks which is rich in iron and belongs to andesite rock
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar
History
Origin
Iceland
Tamil Nadu, India
Discoverer
Ian S. E. Carmichael
T. H. Holland
Etymology
From its origin place near Cenozoic volcano near the parsonage Þingmúli in East Iceland
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, Opaque Rock
Coarse Grained Rock, Opaque Rock