Definition
Pyrolite is an igneous rock consisting of about three parts of peridotite and one part of basalt
Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt
History
Origin
Pike County, U.S
Germany
Discoverer
Unknown
Christian Leopold von Buch
Etymology
From the chemical and mineralogical composition of the upper mantle of the Earth
From Latin glaber bare, smooth, bald
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
Plutonic
Plutonic
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock