Pyrolite and Gneiss Definition

Definition of Pyrolite and Gneiss

The general Pyrolite and Gneiss definition can be stated as: Pyrolite is an igneous rock consisting of about three parts of peridotite and one part of basalt. On the other hand, Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks. Along with definition of Pyrolite and Gneiss, get to know about Properties of Pyrolite and Gneiss. Get to know more information about Pyrolite and Gneiss origin and discoverer, etymology and class.

History of Pyrolite and Gneiss

The history of Pyrolite and Gneiss gives information about where the rock was found and who was its discoverer. Almost each and every aspect of Earth's history is recorded in rocks be it the volcanoes which were erupted or the plants, animals and organisms which are now extinct, as rocks are present from millions of years.

Pyrolite and Gneiss Origin and Discoverer

Pyrolite and Gneiss definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Pyrolite and Gneiss. In this section, you will know about Pyrolite and Gneiss Origin and Discoverer. Origin of Pyrolite is Pike County, U.S whereas Origin of Gneiss is Unknown. It is interesting to know the name of Pyrolite and Gneiss discoverer. The discoverer of Pyrolite and Gneiss are Unknown.

Etymology of Pyrolite and Gneiss

Along with Pyrolite and Gneiss definition, know more about the etymology of Pyrolite and Gneiss. Etymology of Pyrolite and Gneiss gives information about origin and formation of a particular rock. Know more about Formation of Pyrolite and Formation of Gneiss. The etymology of Pyrolite is From the chemical and mineralogical composition of the upper mantle of the Earth while that of Gneiss is From the chemical and mineralogical composition of the upper mantle of the Earth. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Pyrolite belongs to Igneous Rocks while Gneiss belongs to Metamorphic Rocks. The sub-class, group and other categories of Pyrolite and Gneiss are listed below.

For Pyrolite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Plutonic
• Other Categories: Coarse grained rock and Opaque rock

For Gneiss,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Medium grained rock and Opaque rock