Obsidian and Novaculite Definition

Definition of Obsidian and Novaculite

The general Obsidian and Novaculite 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, Novaculite is a dense, hard, fine-grained, siliceous metamorpic rock which is a type of chert that breaks with conchoidal fracture. Along with definition of Obsidian and Novaculite, get to know about Properties of Obsidian and Novaculite. Get to know more information about Obsidian and Novaculite origin and discoverer, etymology and class.

History of Obsidian and Novaculite

The history of Obsidian and Novaculite 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 Novaculite Origin and Discoverer

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

Etymology of Obsidian and Novaculite

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

For Obsidian,

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

For Novaculite,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock