Obsidian and Boninite Definition

Definition of Obsidian and Boninite

The general Obsidian and Boninite definition can be stated as: 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. On the other hand, 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. Along with definition of Obsidian and Boninite, get to know about Properties of Obsidian and Boninite. Get to know more information about Obsidian and Boninite origin and discoverer, etymology and class.

History of Obsidian and Boninite

The history of Obsidian and Boninite 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.

Obsidian and Boninite Origin and Discoverer

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

Etymology of Obsidian and Boninite

Along with Obsidian and Boninite definition, know more about the etymology of Obsidian and Boninite. Etymology of Obsidian and Boninite gives information about origin and formation of a particular rock. Know more about Formation of Obsidian and Formation of Boninite. The etymology of Obsidian is From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius while that of Boninite is From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Obsidian and Boninite belong to Igneous Rocks. The sub-class, group and other categories of Obsidian and Boninite are listed below.

For Obsidian,

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

For Boninite,

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