Definition
Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar
Icelandite belongs to volcanic igneous rocks which is rich in iron and belongs to andesite rock
History
Origin
Germany
Iceland
Discoverer
Christian Leopold von Buch
Ian S. E. Carmichael
Etymology
From Greek di + base
From its origin place near Cenozoic volcano near the parsonage Þingmúli in East Iceland
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Family
Group
Volcanic
Volcanic
Other Categories
Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock