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