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Comendite and Phonolite Definition


Phonolite and Comendite Definition


Definition

Definition
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite   
Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic   

History
  
  

Origin
Italy   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
Comendite derives its name from the area of Le Commende on San Pietro Island in Italy   
From the Greek meaning sounding stone because of the metallic sound it produces if an unfractured plate is hit   

Class
Igneous Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Hard Rock   
Durable Rock, Medium Hardness Rock   

Family
  
  

Group
Volcanic   
Not Applicable   

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

Texture >>
<< Summary

Definition of Comendite and Phonolite

The general Comendite and Phonolite definition can be stated as: Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite. On the other hand, Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic. Along with definition of Comendite and Phonolite, get to know about Properties of Comendite and Phonolite. Get to know more information about Comendite and Phonolite origin and discoverer, etymology and class.

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History of Comendite and Phonolite

The history of Comendite and Phonolite 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 Phonolite Origin and Discoverer

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

Etymology of Comendite and Phonolite

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

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