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Pegmatite and Chalk Definition


Chalk and Pegmatite Definition


Definition

Definition
Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals   
Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers   

History
  
  

Discoverer
R. J. Hauy   
Unknown   

Etymology
From Greek pegma, pegmat which means- thing joined together + -ite   
From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone   

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   
Fine Grained Rock, Opaque Rock   

Texture >>
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Definition of Pegmatite and Chalk

The general Pegmatite and Chalk definition can be stated as: Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. On the other hand, Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. Along with definition of Pegmatite and Chalk, get to know about Properties of Pegmatite and Chalk. Get to know more information about Pegmatite and Chalk origin and discoverer, etymology and class.

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History of Pegmatite and Chalk

The history of Pegmatite and Chalk 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 Chalk Origin and Discoverer

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

Etymology of Pegmatite and Chalk

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

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For Chalk,

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