Vogesite and Obsidian Definition

Definition of Vogesite and Obsidian

The general Vogesite and Obsidian definition can be stated as: Vogesite is a porphyritic alkaline igneous rock and is a variety of Lamprophyre which is dominated by essential amphibole, usually hornblende, and potassic feldspar. 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 Vogesite and Obsidian, get to know about Properties of Vogesite and Obsidian. Get to know more information about Vogesite and Obsidian origin and discoverer, etymology and class.

History of Vogesite and Obsidian

The history of Vogesite 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.

Vogesite and Obsidian Origin and Discoverer

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

Etymology of Vogesite and Obsidian

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

For Vogesite,

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

For Obsidian,

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