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Pegmatite and Lignite Definition


Lignite and Pegmatite Definition


Definition

Definition
Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals   
Lignite is a soft brownish coal which shows traces of plants and is intermediate between bituminous coal and peat   

History
  
  

Origin
Unknown   
France   

Discoverer
R. J. Hauy   
Unknown   

Etymology
From Greek pegma, pegmat which means- thing joined together + -ite   
From French, Latin lignum wood + -ite1   

Class
Igneous Rocks   
Sedimentary Rocks   

Sub-Class
Durable Rock, Hard Rock   
Durable Rock, Soft Rock   

Family
  
  

Group
Plutonic   
Not Applicable   

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

Texture >>
<< Summary

Definition of Pegmatite and Lignite

The general Pegmatite and Lignite definition can be stated as: Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. On the other hand, Lignite is a soft brownish coal which shows traces of plants and is intermediate between bituminous coal and peat. Along with definition of Pegmatite and Lignite, get to know about Properties of Pegmatite and Lignite. Get to know more information about Pegmatite and Lignite origin and discoverer, etymology and class.

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History of Pegmatite and Lignite

The history of Pegmatite and Lignite 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.

Pegmatite and Lignite Origin and Discoverer

Pegmatite and Lignite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Pegmatite and Lignite. In this section, you will know about Pegmatite and Lignite Origin and Discoverer. Origin of Pegmatite is Unknown whereas Origin of Lignite is France. It is interesting to know the name of Pegmatite and Lignite discoverer. The Discoverer of Pegmatite is R. J. Hauy and the discoverer of Lignite is Unknown.

Etymology of Pegmatite and Lignite

Along with Pegmatite and Lignite definition, know more about the etymology of Pegmatite and Lignite. Etymology of Pegmatite and Lignite gives information about origin and formation of a particular rock. Know more about Formation of Pegmatite and Formation of Lignite. The etymology of Pegmatite is From Greek pegma, pegmat which means- thing joined together + -ite while that of Lignite is From Greek pegma, pegmat which means- thing joined together + -ite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Pegmatite belongs to Igneous Rocks while Lignite belongs to Sedimentary Rocks. The sub-class, group and other categories of Pegmatite and Lignite are listed below.

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