Trachyandesite and Obsidian Definition

Definition of Trachyandesite and Obsidian

The general Trachyandesite and Obsidian definition can be stated as: Trachyandesite is an extrusive igneous rock.. 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 Trachyandesite and Obsidian, get to know about Properties of Trachyandesite and Obsidian. Get to know more information about Trachyandesite and Obsidian origin and discoverer, etymology and class.

History of Trachyandesite and Obsidian

The history of Trachyandesite 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.

Trachyandesite and Obsidian Origin and Discoverer

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

Etymology of Trachyandesite and Obsidian

Along with Trachyandesite and Obsidian definition, know more about the etymology of Trachyandesite and Obsidian. Etymology of Trachyandesite and Obsidian gives information about origin and formation of a particular rock. Know more about Formation of Trachyandesite and Formation of Obsidian. The etymology of Trachyandesite is From French trachyandésite, trachy + andésite andesite, a lava intermediate in composition between trachyte and andesite while that of Obsidian is From French trachyandésite, trachy + andésite andesite, a lava intermediate in composition between trachyte and andesite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Trachyandesite and Obsidian belong to Igneous Rocks. The sub-class, group and other categories of Trachyandesite and Obsidian are listed below.

For Trachyandesite,

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

For Obsidian,

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