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Chalk and Essexite  Definition


Essexite  and Chalk Definition


Definition

Definition
Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers   
Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock   

History
  
  

Origin
Unknown   
USA   

Discoverer
Unknown   
Unknown   

Etymology
From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone   
From the locality in Essex County, Massachusetts,US   

Class
Sedimentary Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Plutonic   

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

Texture >>
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Definition of Chalk and Essexite 

The general Chalk and Essexite  definition can be stated as: Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. On the other hand, Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock. Along with definition of Chalk and Essexite , get to know about Properties of Chalk and Essexite . Get to know more information about Chalk and Essexite  origin and discoverer, etymology and class.

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History of Chalk and Essexite 

The history of Chalk and Essexite  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.

Chalk and Essexite  Origin and Discoverer

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

Etymology of Chalk and Essexite 

Along with Chalk and Essexite  definition, know more about the etymology of Chalk and Essexite . Etymology of Chalk and Essexite  gives information about origin and formation of a particular rock. Know more about Formation of Chalk and Formation of Essexite . The etymology of Chalk is From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone while that of Essexite  is From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Chalk belongs to Sedimentary Rocks while Essexite  belongs to Igneous Rocks. The sub-class, group and other categories of Chalk and Essexite  are listed below.

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