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Obsidian and Mudstone Definition


Mudstone and Obsidian Definition


Definition

Definition
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   
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   

History
  
  

Origin
Ethiopia   
Unknown   

Discoverer
Obsius   
Unknown   

Etymology
From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius   
From the English mud and stone, from low German mudde and stainaz   

Class
Igneous Rocks   
Sedimentary Rocks   

Sub-Class
Durable Rock, Medium Hardness Rock   
Durable Rock, Soft Rock   

Family
  
  

Group
Volcanic   
Not Applicable   

Other Categories
Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture >>
<< Summary

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.

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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 Unknown. It is interesting to know the name of Obsidian and Mudstone discoverer. The Discoverer of Obsidian is Obsius and the discoverer of Mudstone is Unknown.

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,

For Mudstone,

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