Obsidian and Ignimbrite Definition

Definition of Obsidian and Ignimbrite

The general Obsidian and Ignimbrite 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, Ignimbrite is a volcanic rock consisting mainly of pumice fragments, formed by the consolidation of material deposited by pyroclastic flows. Along with definition of Obsidian and Ignimbrite, get to know about Properties of Obsidian and Ignimbrite. Get to know more information about Obsidian and Ignimbrite origin and discoverer, etymology and class.

History of Obsidian and Ignimbrite

The history of Obsidian and Ignimbrite 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 Ignimbrite Origin and Discoverer

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

Etymology of Obsidian and Ignimbrite

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

For Obsidian,

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

For Ignimbrite,

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