Granodiorite and Obsidian Definition

Definition of Granodiorite and Obsidian

The general Granodiorite and Obsidian definition can be stated as: Granodiorite is a coarse-grained intrusive igneous rock containing quartz and plagioclase, and which has composition in between granite and diorite. 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 Granodiorite and Obsidian, get to know about Properties of Granodiorite and Obsidian. Get to know more information about Granodiorite and Obsidian origin and discoverer, etymology and class.

History of Granodiorite and Obsidian

The history of Granodiorite 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.

Granodiorite and Obsidian Origin and Discoverer

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

Etymology of Granodiorite and Obsidian

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

For Granodiorite,

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

For Obsidian,

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