Marble and Obsidian Definition

Definition of Marble and Obsidian

The general Marble and Obsidian definition can be stated as: Marble is a non-foliated metamorphic rock which is composed of recrystallized carbonate which is formed when limestone is exposed to high temperatures and pressures over a long time. 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 Marble and Obsidian, get to know about Properties of Marble and Obsidian. Get to know more information about Marble and Obsidian origin and discoverer, etymology and class.

History of Marble and Obsidian

The history of Marble 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.

Marble and Obsidian Origin and Discoverer

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

Etymology of Marble and Obsidian

Along with Marble and Obsidian definition, know more about the etymology of Marble and Obsidian. Etymology of Marble and Obsidian gives information about origin and formation of a particular rock. Know more about Formation of Marble and Formation of Obsidian. The etymology of Marble is From the Greek marmaros, shining stone and also from the English word marmoreal meaning marble-like while that of Obsidian is From the Greek marmaros, shining stone and also from the English word marmoreal meaning marble-like. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Marble belongs to Metamorphic Rocks while Obsidian belongs to Igneous Rocks. The sub-class, group and other categories of Marble and Obsidian are listed below.

For Marble,

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

For Obsidian,

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