Diabase and Obsidian Definition

Definition of Diabase and Obsidian

The general Diabase and Obsidian definition can be stated as: Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar. On the other hand, 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. Along with definition of Diabase and Obsidian, get to know about Properties of Diabase and Obsidian. Get to know more information about Diabase and Obsidian origin and discoverer, etymology and class.

History of Diabase and Obsidian

The history of Diabase and Obsidian 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.

Diabase and Obsidian Origin and Discoverer

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

Etymology of Diabase and Obsidian

Along with Diabase and Obsidian definition, know more about the etymology of Diabase and Obsidian. Etymology of Diabase and Obsidian gives information about origin and formation of a particular rock. Know more about Formation of Diabase and Formation of Obsidian. The etymology of Diabase is From Greek di + base while that of Obsidian is From Greek di + base. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Diabase and Obsidian belong to Igneous Rocks. The sub-class, group and other categories of Diabase and Obsidian are listed below.

For Diabase,

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

For Obsidian,

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