Obsidian and Teschenite Definition

Definition of Obsidian and Teschenite

The general Obsidian and Teschenite 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, Teschenite is coarse- to fine-grained, dark-coloured intrusive igneous rock that usually occurs in sills, dikes and irregular masses and is always altered to some extent. Along with definition of Obsidian and Teschenite, get to know about Properties of Obsidian and Teschenite. Get to know more information about Obsidian and Teschenite origin and discoverer, etymology and class.

History of Obsidian and Teschenite

The history of Obsidian and Teschenite 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 Teschenite Origin and Discoverer

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

Etymology of Obsidian and Teschenite

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

For Obsidian,

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

For Teschenite,

• Sub-class: Durable Rock and Hard Rock
• Group: Plutonic
• Other Categories: Coarse grained rock and Opaque rock