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Obsidian and Larvikite Definition


Larvikite 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   
Larvikite is an igneous rock and a variety of monzonite, notable for the presence of thumbnail-sized crystals of feldspar   

History
  
  

Origin
Ethiopia   
Larvik, Norway   

Discoverer
Obsius   
Unknown   

Etymology
From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius   
From the town of Larvik in Norway, where this type of igneous rock is found   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Plutonic   

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

Texture >>
<< Summary

Definition of Obsidian and Larvikite

The general Obsidian and Larvikite 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, Larvikite is an igneous rock and a variety of monzonite, notable for the presence of thumbnail-sized crystals of feldspar. Along with definition of Obsidian and Larvikite, get to know about Properties of Obsidian and Larvikite. Get to know more information about Obsidian and Larvikite origin and discoverer, etymology and class.

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History of Obsidian and Larvikite

The history of Obsidian and Larvikite 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 Larvikite Origin and Discoverer

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

Etymology of Obsidian and Larvikite

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

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