Gneiss and Dunite Definition

Definition of Gneiss and Dunite

The general Gneiss and Dunite definition can be stated as: 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. On the other hand, Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine. Along with definition of Gneiss and Dunite, get to know about Properties of Gneiss and Dunite. Get to know more information about Gneiss and Dunite origin and discoverer, etymology and class.

History of Gneiss and Dunite

The history of Gneiss and Dunite 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.

Gneiss and Dunite Origin and Discoverer

Gneiss and Dunite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Gneiss and Dunite. In this section, you will know about Gneiss and Dunite Origin and Discoverer. Origin of Gneiss is whereas Origin of Dunite is New Zealand. It is interesting to know the name of Gneiss and Dunite discoverer. The Discoverer of Gneiss is Unknown and the discoverer of Dunite is Ferdinand von Hochstetter.

Etymology of Gneiss and Dunite

Along with Gneiss and Dunite definition, know more about the etymology of Gneiss and Dunite. Etymology of Gneiss and Dunite gives information about origin and formation of a particular rock. Know more about Formation of Gneiss and Formation of Dunite. The etymology of Gneiss is From the Middle High German verb gneist (to spark; so called because the rock glitters) while that of Dunite is From the Middle High German verb gneist (to spark; so called because the rock glitters). The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Gneiss belongs to Metamorphic Rocks while Dunite belongs to Igneous Rocks. The sub-class, group and other categories of Gneiss and Dunite are listed below.

For Gneiss,

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

For Dunite,

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