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Claystone and Chalk Definition


Chalk and Claystone Definition


Definition

Definition
Claystone is a fine-grained, dark gray to pink sedimentary rock which mainly consists of compacted and hardened clay   
Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers   

History
  
  

Discoverer
Unknown   
Unknown   

Etymology
From English clay and stone as the rock contains more amount of clay   
From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone   

Class
Sedimentary Rocks   
Sedimentary Rocks   

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

Family
  
  

Group
Not Applicable   
Not Applicable   

Other Categories
Fine Grained Rock, Opaque Rock   
Fine Grained Rock, Opaque Rock   

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Definition of Claystone and Chalk

The general Claystone and Chalk definition can be stated as: Claystone is a fine-grained, dark gray to pink sedimentary rock which mainly consists of compacted and hardened clay. On the other hand, Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. Along with definition of Claystone and Chalk, get to know about Properties of Claystone and Chalk. Get to know more information about Claystone and Chalk origin and discoverer, etymology and class.

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History of Claystone and Chalk

The history of Claystone 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.

Claystone and Chalk Origin and Discoverer

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

Etymology of Claystone and Chalk

Along with Claystone and Chalk definition, know more about the etymology of Claystone and Chalk. Etymology of Claystone and Chalk gives information about origin and formation of a particular rock. Know more about Formation of Claystone and Formation of Chalk. The etymology of Claystone is From English clay and stone as the rock contains more amount of clay while that of Chalk is From English clay and stone as the rock contains more amount of clay. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Claystone and Chalk belong to Sedimentary Rocks. The sub-class, group and other categories of Claystone and Chalk are listed below.

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For Chalk,

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Fossil Rocks

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