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Obsidian and Pyroxenite Definition


Pyroxenite 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   
Pyroxenite is a dark, greenish, granular intrusive igneous rock consisting mainly of pyroxenes and olivine   

History
  
  

Origin
Ethiopia   
Unknown   

Discoverer
Obsius   
Unknown   

Etymology
From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius   
From pyro- fire + Greek xenos stranger as the mineral group was new to igneous rocks   

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, Opaque Rock   

Texture >>
<< Summary

Definition of Obsidian and Pyroxenite

The general Obsidian and Pyroxenite 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, Pyroxenite is a dark, greenish, granular intrusive igneous rock consisting mainly of pyroxenes and olivine. Along with definition of Obsidian and Pyroxenite, get to know about Properties of Obsidian and Pyroxenite. Get to know more information about Obsidian and Pyroxenite origin and discoverer, etymology and class.

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History of Obsidian and Pyroxenite

The history of Obsidian and Pyroxenite 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 Pyroxenite Origin and Discoverer

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

Etymology of Obsidian and Pyroxenite

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

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