Definition
Pyrolite is an igneous rock consisting of about three parts of peridotite and one part of basalt
Skarns are formed during regional or contact metamorphism and from a variety of metasomatic processes involving fluids of magmatic, metamorphic, and/or marine origin
History
Origin
Pike County, U.S
USA, Australia
Discoverer
Unknown
Tornebohm
Etymology
From the chemical and mineralogical composition of the upper mantle of the Earth
From an old Swedish mining term originally used to describe a type of silicate gangue or waste rock.
Class
Igneous Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
Plutonic
-
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock