Obsidian and Oolite Definition

Definition of Obsidian and Oolite

The general Obsidian and Oolite 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, Oolite is a sedimentary rock formed from ooids, spherical grains which are composed of concentric layers of calcite. Along with definition of Obsidian and Oolite, get to know about Properties of Obsidian and Oolite. Get to know more information about Obsidian and Oolite origin and discoverer, etymology and class.

History of Obsidian and Oolite

The history of Obsidian and Oolite 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 Oolite Origin and Discoverer

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

Etymology of Obsidian and Oolite

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

For Obsidian,

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

For Oolite,

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