Obsidian and Charnockite Definition

Definition of Obsidian and Charnockite

The general Obsidian and Charnockite 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, Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar. Along with definition of Obsidian and Charnockite, get to know about Properties of Obsidian and Charnockite. Get to know more information about Obsidian and Charnockite origin and discoverer, etymology and class.

History of Obsidian and Charnockite

The history of Obsidian and Charnockite 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 Charnockite Origin and Discoverer

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

Etymology of Obsidian and Charnockite

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

For Obsidian,

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

For Charnockite,

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