Obsidian and Skarn Definition

Definition of Obsidian and Skarn

The general Obsidian and Skarn 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, Skarns are formed during regional or contact metamorphism and from a variety of metasomatic processes involving fluids of magmatic, metamorphic, and/or marine origin. Along with definition of Obsidian and Skarn, get to know about Properties of Obsidian and Skarn. Get to know more information about Obsidian and Skarn origin and discoverer, etymology and class.

History of Obsidian and Skarn

The history of Obsidian and Skarn 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 Skarn Origin and Discoverer

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

Etymology of Obsidian and Skarn

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

For Obsidian,

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

For Skarn,

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