Obsidian and Vogesite Definition

Definition of Obsidian and Vogesite

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

History of Obsidian and Vogesite

The history of Obsidian and Vogesite 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 Vogesite Origin and Discoverer

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

Etymology of Obsidian and Vogesite

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

For Obsidian,

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

For Vogesite,

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