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Andesite and Chert Definition


Chert and Andesite Definition


Definition

Definition
Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava   
Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture   

History
  
  

Origin
North America   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From Andes mountains, where it is found in abundance   
From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use   

Class
Igneous Rocks   
Sedimentary Rocks   

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

Family
  
  

Group
Volcanic   
Not Applicable   

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

Texture >>
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Definition of Andesite and Chert

The general Andesite and Chert definition can be stated as: Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. On the other hand, Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture. Along with definition of Andesite and Chert, get to know about Properties of Andesite and Chert. Get to know more information about Andesite and Chert origin and discoverer, etymology and class.

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History of Andesite and Chert

The history of Andesite and Chert 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.

Andesite and Chert Origin and Discoverer

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

Etymology of Andesite and Chert

Along with Andesite and Chert definition, know more about the etymology of Andesite and Chert. Etymology of Andesite and Chert gives information about origin and formation of a particular rock. Know more about Formation of Andesite and Formation of Chert. The etymology of Andesite is From Andes mountains, where it is found in abundance while that of Chert is From Andes mountains, where it is found in abundance. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Andesite belongs to Igneous Rocks while Chert belongs to Sedimentary Rocks. The sub-class, group and other categories of Andesite and Chert are listed below.

For Andesite,

For Chert,

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