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Obsidian and Metapelite Definition


Metapelite 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   
Metapelite is an old and currently not widely used field geological term for a clay rich fine-grained clastic sediment or sedimentary rock, i.e. mud or a mudstone   

History
  
  

Origin
Ethiopia   
Unknown   

Discoverer
Obsius   
Unknown   

Etymology
From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius   
From Pelos or clay in Greek   

Class
Igneous Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Volcanic   
Not Applicable   

Other Categories
Opaque Rock   
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock   

Texture >>
<< Summary

Definition of Obsidian and Metapelite

The general Obsidian and Metapelite 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, Metapelite is an old and currently not widely used field geological term for a clay rich fine-grained clastic sediment or sedimentary rock, i.e. mud or a mudstone. Along with definition of Obsidian and Metapelite, get to know about Properties of Obsidian and Metapelite. Get to know more information about Obsidian and Metapelite origin and discoverer, etymology and class.

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History of Obsidian and Metapelite

The history of Obsidian and Metapelite 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 Metapelite Origin and Discoverer

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

Etymology of Obsidian and Metapelite

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

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For Metapelite,

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