Definition
Icelandite belongs to volcanic igneous rocks which is rich in iron and belongs to andesite rock
Pyrolite is an igneous rock consisting of about three parts of peridotite and one part of basalt
History
Origin
Iceland
Pike County, U.S
Discoverer
Ian S. E. Carmichael
Unknown
Etymology
From its origin place near Cenozoic volcano near the parsonage Þingmúli in East Iceland
From the chemical and mineralogical composition of the upper mantle of the Earth
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Volcanic
Plutonic
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock