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Rhyodacite and Comendite Definition


Comendite and Rhyodacite Definition


Definition

Definition
Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite   
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite   

History
  
  

Origin
USA   
Italy   

Discoverer
Unknown   
Unknown   

Etymology
Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite   
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, Medium Hardness Rock   
Durable Rock, Hard Rock   

Family
  
  

Group
Volcanic   
Volcanic   

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

Texture >>
<< Summary

Definition of Rhyodacite and Comendite

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

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History of Rhyodacite and Comendite

The history of Rhyodacite 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.

Rhyodacite and Comendite Origin and Discoverer

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

Etymology of Rhyodacite and Comendite

Along with Rhyodacite and Comendite definition, know more about the etymology of Rhyodacite and Comendite. Etymology of Rhyodacite and Comendite gives information about origin and formation of a particular rock. Know more about Formation of Rhyodacite and Formation of Comendite. The etymology of Rhyodacite is Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite while that of Comendite is Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Rhyodacite and Comendite belong to Igneous Rocks. The sub-class, group and other categories of Rhyodacite and Comendite are listed below.

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