Dunite and Obsidian Definition

Definition of Dunite and Obsidian

The general Dunite and Obsidian definition can be stated as: Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine. On the other hand, Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth. Along with definition of Dunite and Obsidian, get to know about Properties of Dunite and Obsidian. Get to know more information about Dunite and Obsidian origin and discoverer, etymology and class.

History of Dunite and Obsidian

The history of Dunite and Obsidian 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 Obsidian Origin and Discoverer

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

Etymology of Dunite and Obsidian

Along with Dunite and Obsidian definition, know more about the etymology of Dunite and Obsidian. Etymology of Dunite and Obsidian gives information about origin and formation of a particular rock. Know more about Formation of Dunite and Formation of Obsidian. The etymology of Dunite is From the name of Dun Mountain, New Zealand, + -ite1 while that of Obsidian 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 and Obsidian belong to Igneous Rocks. The sub-class, group and other categories of Dunite and Obsidian are listed below.

For Dunite,

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

For Obsidian,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• Other Categories: Opaque rock