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Obsidian
Obsidian

Pegmatite
Pegmatite



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Obsidian
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Pegmatite

Obsidian and Pegmatite Definition

Definition

Definition

Origin

Discoverer

Etymology

Class

Sub-Class

Group

Other Categories

 
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
Ethiopia
Obsius
From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius
Igneous Rocks
Durable Rock, Medium Hardness Rock
Volcanic
Opaque Rock
 
Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals
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R. J. Hauy
From Greek pegma, pegmat which means- thing joined together + -ite
Igneous Rocks
Durable Rock, Hard Rock
Plutonic
Coarse Grained Rock, Opaque Rock

Definition of Obsidian and Pegmatite

The general Obsidian and Pegmatite definition can be stated as: . On the other hand, . Along with definition of Obsidian and Pegmatite, get to know about Obsidian vs Pegmatite. Get to know more information about Obsidian and Pegmatite origin and discoverer, etymology and class.

History of Obsidian and Pegmatite

The history of Obsidian and Pegmatite 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 Pegmatite Origin and Discoverer

Obsidian and Pegmatite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Obsidian vs Pegmatite. In this section, you will know about Obsidian and Pegmatite Origin and Discoverer. Origin of Obsidian and Pegmatite are . It is interesting to know the name of Obsidian and Pegmatite discoverer. The discoverer of Obsidian and Pegmatite are .

Etymology of Obsidian and Pegmatite

Along with Obsidian and Pegmatite definition, know more about the etymology of Obsidian and Pegmatite. Etymology of Obsidian and Pegmatite gives information about origin and formation of a particular rock. Know more about Formation of Obsidian and Formation of Pegmatite. The etymology of Obsidian is while that of Pegmatite is . The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Obsidian and Pegmatite belong to . The sub-class, group and other categories of Obsidian and Pegmatite are listed below.

For Obsidian,

  • Sub-class:
  • Group:
  • Other Categories:

For Pegmatite,

  • Sub-class:
  • Group:
  • Other Categories: