Definition
Pyrolite is an igneous rock consisting of about three parts of peridotite and one part of basalt
It is a metamorphic magnesium rich rock because it is composed of the mineral talc
History
Origin
Pike County, U.S
USA
Discoverer
Unknown
Unknown
Etymology
From the chemical and mineralogical composition of the upper mantle of the Earth
From 17th century, because of its greasy feel and use like a soap
Class
Igneous Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
Family
Group
Plutonic
-
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock