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Variolite and Essexite  Definition


Essexite  and Variolite Definition


Definition

Definition
Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance   
Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock   

History
  
  

Origin
France   
USA   

Discoverer
Unknown   
Unknown   

Etymology
From Latin varius, speckled, variegated   
From the locality in Essex County, Massachusetts,US   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Plutonic   

Other Categories
Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture >>
<< Summary

Definition of Variolite and Essexite 

The general Variolite and Essexite  definition can be stated as: Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance. 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 Variolite and Essexite , get to know about Properties of Variolite and Essexite . Get to know more information about Variolite and Essexite  origin and discoverer, etymology and class.

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History of Variolite and Essexite 

The history of Variolite 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.

Variolite and Essexite  Origin and Discoverer

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

Etymology of Variolite and Essexite 

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

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