Definition
Mugearite is a type of oligoclase bearing basalt, also comprising of olivine, apatite, and opaque oxides
Pyrolite is an igneous rock consisting of about three parts of peridotite and one part of basalt
History
Origin
Skye, Scotland
Pike County, U.S
Discoverer
Alfred Harker
Unknown
Etymology
From mugear + -ite
From the chemical and mineralogical composition of the upper mantle of the Earth
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
Volcanic
Plutonic
Other Categories
Opaque Rock
Coarse Grained Rock, Opaque Rock