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Chert and Trachyandesite Definition


Trachyandesite and Chert Definition


Definition

Definition
Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture   
Trachyandesite is an extrusive igneous rock.   

History
  
  

Origin
Unknown   
Indonesia   

Discoverer
Unknown   
Unknown   

Etymology
From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use   
From French trachyandésite, trachy + andésite andesite, a lava intermediate in composition between trachyte and andesite   

Class
Sedimentary Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Volcanic   

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

Texture >>
<< Summary

Definition of Chert and Trachyandesite

The general Chert and Trachyandesite definition can be stated as: Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture. On the other hand, Trachyandesite is an extrusive igneous rock.. Along with definition of Chert and Trachyandesite, get to know about Properties of Chert and Trachyandesite. Get to know more information about Chert and Trachyandesite origin and discoverer, etymology and class.

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History of Chert and Trachyandesite

The history of Chert and Trachyandesite 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.

Chert and Trachyandesite Origin and Discoverer

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

Etymology of Chert and Trachyandesite

Along with Chert and Trachyandesite definition, know more about the etymology of Chert and Trachyandesite. Etymology of Chert and Trachyandesite gives information about origin and formation of a particular rock. Know more about Formation of Chert and Formation of Trachyandesite. The etymology of Chert is From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use while that of Trachyandesite is From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Chert belongs to Sedimentary Rocks while Trachyandesite belongs to Igneous Rocks. The sub-class, group and other categories of Chert and Trachyandesite are listed below.

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