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Variolite and Andesite Definition


Andesite 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   
Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava   

History
  
  

Origin
France   
North America   

Discoverer
Unknown   
Unknown   

Etymology
From Latin varius, speckled, variegated   
From Andes mountains, where it is found in abundance   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Volcanic   

Other Categories
Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture >>
<< Summary

Definition of Variolite and Andesite

The general Variolite and Andesite 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, Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. Along with definition of Variolite and Andesite, get to know about Properties of Variolite and Andesite. Get to know more information about Variolite and Andesite origin and discoverer, etymology and class.

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History of Variolite and Andesite

The history of Variolite and Andesite 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 Andesite Origin and Discoverer

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

Etymology of Variolite and Andesite

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

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