Greenschist and Obsidian Definition

Definition of Greenschist and Obsidian

The general Greenschist and Obsidian definition can be stated as: Greenschist is a metamorphic rock that is formed under lowest temperatures and pressures and is usually produced by regional metamorphism. 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 Greenschist and Obsidian, get to know about Properties of Greenschist and Obsidian. Get to know more information about Greenschist and Obsidian origin and discoverer, etymology and class.

History of Greenschist and Obsidian

The history of Greenschist 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.

Greenschist and Obsidian Origin and Discoverer

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

Etymology of Greenschist and Obsidian

Along with Greenschist and Obsidian definition, know more about the etymology of Greenschist and Obsidian. Etymology of Greenschist and Obsidian gives information about origin and formation of a particular rock. Know more about Formation of Greenschist and Formation of Obsidian. The etymology of Greenschist is From minerals such as chlorite, serpentine, and epidote, and platy minerals such as muscovite and platy serpentine which are green in color while that of Obsidian is From minerals such as chlorite, serpentine, and epidote, and platy minerals such as muscovite and platy serpentine which are green in color. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Greenschist belongs to Metamorphic Rocks while Obsidian belongs to Igneous Rocks. The sub-class, group and other categories of Greenschist and Obsidian are listed below.

For Greenschist,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock

For Obsidian,

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