Granophyre and Obsidian Definition

Definition of Granophyre and Obsidian

The general Granophyre and Obsidian definition can be stated as: Granophyre is a type of granitic rock which consists of intergrown feldspar and quartz crystals in a medium to fine grained groundmass. 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 Granophyre and Obsidian, get to know about Properties of Granophyre and Obsidian. Get to know more information about Granophyre and Obsidian origin and discoverer, etymology and class.

History of Granophyre and Obsidian

The history of Granophyre 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.

Granophyre and Obsidian Origin and Discoverer

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

Etymology of Granophyre and Obsidian

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

For Granophyre,

• Sub-class: Durable Rock and Hard Rock
• Group: Volcanic
• 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