Obsidian and Mylonite Definition

Definition of Obsidian and Mylonite

The general Obsidian and Mylonite 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, Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism. Along with definition of Obsidian and Mylonite, get to know about Properties of Obsidian and Mylonite. Get to know more information about Obsidian and Mylonite origin and discoverer, etymology and class.

History of Obsidian and Mylonite

The history of Obsidian and Mylonite 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 Mylonite Origin and Discoverer

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

Etymology of Obsidian and Mylonite

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

For Obsidian,

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

For Mylonite,

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