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Comendite and Argillite Definition


Argillite and Comendite Definition


Definition

Definition
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite   
Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate   

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 Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite   

Class
Igneous Rocks   
Sedimentary Rocks   

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

Family
  
  

Group
Volcanic   
Not Applicable   

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

Texture >>
<< Summary

Definition of Comendite and Argillite

The general Comendite and Argillite definition can be stated as: Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite. On the other hand, Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate. Along with definition of Comendite and Argillite, get to know about Properties of Comendite and Argillite. Get to know more information about Comendite and Argillite origin and discoverer, etymology and class.

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History of Comendite and Argillite

The history of Comendite and Argillite 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 Argillite Origin and Discoverer

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

Etymology of Comendite and Argillite

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

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