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Comendite and Variolite Definition


Variolite and Comendite Definition


Definition

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

History
  
  

Origin
Italy   
France   

Discoverer
Unknown   
Unknown   

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

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Volcanic   

Other Categories
Medium Grained Rock, Opaque Rock   
Opaque Rock   

Texture >>
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Definition of Comendite and Variolite

The general Comendite and Variolite definition can be stated as: Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite. On the other hand, 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. Along with definition of Comendite and Variolite, get to know about Properties of Comendite and Variolite. Get to know more information about Comendite and Variolite origin and discoverer, etymology and class.

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History of Comendite and Variolite

The history of Comendite and Variolite 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.

Comendite and Variolite Origin and Discoverer

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

Etymology of Comendite and Variolite

Along with Comendite and Variolite definition, know more about the etymology of Comendite and Variolite. Etymology of Comendite and Variolite gives information about origin and formation of a particular rock. Know more about Formation of Comendite and Formation of Variolite. The etymology of Comendite is Comendite derives its name from the area of Le Commende on San Pietro Island in Italy while that of Variolite is Comendite derives its name from the area of Le Commende on San Pietro Island in Italy. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Comendite and Variolite belong to Igneous Rocks. The sub-class, group and other categories of Comendite and Variolite are listed below.

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