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Variolite and Comendite Definition


Comendite 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   
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite   

History
  
  

Origin
France   
Italy   

Discoverer
Unknown   
Unknown   

Etymology
From Latin varius, speckled, variegated   
Comendite derives its name from the area of Le Commende on San Pietro Island in Italy   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Volcanic   

Other Categories
Opaque Rock   
Medium Grained Rock, Opaque Rock   

Texture >>
<< Summary

Definition of Variolite and Comendite

The general Variolite and Comendite 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, Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite. Along with definition of Variolite and Comendite, get to know about Properties of Variolite and Comendite. Get to know more information about Variolite and Comendite origin and discoverer, etymology and class.

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History of Variolite and Comendite

The history of Variolite and Comendite 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 Comendite Origin and Discoverer

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

Etymology of Variolite and Comendite

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

For Variolite,

For Comendite,

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