Trachyte and Obsidian Definition

Definition of Trachyte and Obsidian

The general Trachyte and Obsidian definition can be stated as: Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali 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 Trachyte and Obsidian, get to know about Properties of Trachyte and Obsidian. Get to know more information about Trachyte and Obsidian origin and discoverer, etymology and class.

History of Trachyte and Obsidian

The history of Trachyte 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.

Trachyte and Obsidian Origin and Discoverer

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

Etymology of Trachyte and Obsidian

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

For Trachyte,

• 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