Dunite and Gneiss Definition

Definition of Dunite and Gneiss

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

History of Dunite and Gneiss

The history of Dunite 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.

Dunite and Gneiss Origin and Discoverer

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

Etymology of Dunite and Gneiss

Along with Dunite and Gneiss definition, know more about the etymology of Dunite and Gneiss. Etymology of Dunite and Gneiss gives information about origin and formation of a particular rock. Know more about Formation of Dunite and Formation of Gneiss. The etymology of Dunite is From the name of Dun Mountain, New Zealand, + -ite1 while that of Gneiss is From the name of Dun Mountain, New Zealand, + -ite1. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Dunite belongs to Igneous Rocks while Gneiss belongs to Metamorphic Rocks. The sub-class, group and other categories of Dunite and Gneiss are listed below.

For Dunite,

• 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