Obsidian and Mudstone Definition

Definition of Obsidian and Mudstone

The general Obsidian and Mudstone 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, Mudstone is a fine-grained, dark gray sedimentary rock, which is formed from silt and clay and is similar to shale but has less laminations. Along with definition of Obsidian and Mudstone, get to know about Properties of Obsidian and Mudstone. Get to know more information about Obsidian and Mudstone origin and discoverer, etymology and class.

History of Obsidian and Mudstone

The history of Obsidian and Mudstone 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 Mudstone Origin and Discoverer

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

Etymology of Obsidian and Mudstone

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

For Obsidian,

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

For Mudstone,

• Sub-class: Durable Rock and Soft Rock
• Group:
• Other Categories: Fine grained rock and Opaque rock