Definition
Icelandite belongs to volcanic igneous rocks which is rich in iron and belongs to andesite rock
Granite is a very hard, granular, crystalline igneous rock which consists mainly of quartz, mica, and feldspar and is often used as building stone
History
Origin
Iceland
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Discoverer
Ian S. E. Carmichael
Alexander von Humboldt
Etymology
From its origin place near Cenozoic volcano near the parsonage Þingmúli in East Iceland
From Italian granito, which means grained rock, from grano grain, and from Latin granum
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