Definition
Pyrolite is an igneous rock consisting of about three parts of peridotite and one part of basalt
Kenyte is a variety of porphyritic phonolite or trachyte rock with rhomb shaped phenocrysts of anorthoclase with variable olivine and augite in a glassy matrix
History
Origin
Pike County, U.S
Mount Kenya
Discoverer
Unknown
J. W. Gregory
Etymology
From the chemical and mineralogical composition of the upper mantle of the Earth
From the mountain ranges- Mount Kenya and is named by J. W. Gregory in 1900
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
Plutonic
-
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock