Boninite and Obsidian Definition

Definition of Boninite and Obsidian

The general Boninite and Obsidian definition can be stated as: Boninite is a mafic extrusive rock which is high in magnesium and silica content, formed in fore-arc environments, typically during the early stages of subduction. 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 Boninite and Obsidian, get to know about Properties of Boninite and Obsidian. Get to know more information about Boninite and Obsidian origin and discoverer, etymology and class.

History of Boninite and Obsidian

The history of Boninite 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.

Boninite and Obsidian Origin and Discoverer

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

Etymology of Boninite and Obsidian

Along with Boninite and Obsidian definition, know more about the etymology of Boninite and Obsidian. Etymology of Boninite and Obsidian gives information about origin and formation of a particular rock. Know more about Formation of Boninite and Formation of Obsidian. The etymology of Boninite is From its occurrence in the Izu-Bonin arc south of Japan while that of Obsidian is From its occurrence in the Izu-Bonin arc south of Japan. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Boninite and Obsidian belong to Igneous Rocks. The sub-class, group and other categories of Boninite and Obsidian are listed below.

For Boninite,

• Sub-class: Durable Rock and Hard Rock
• Group: Volcanic
• Other Categories: Fine grained rock and Opaque rock

For Obsidian,

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