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Greywacke and Felsite Definition


Felsite and Greywacke Definition


Definition

Definition
Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay   
Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition   

History
  
  

Discoverer
Unknown   
Unknown   

Etymology
From German Grauwacke, from grau grey + wacke   
From English feldspar and -ite   

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 >>
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Definition of Greywacke and Felsite

The general Greywacke and Felsite definition can be stated as: Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay. On the other hand, Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition. Along with definition of Greywacke and Felsite, get to know about Properties of Greywacke and Felsite. Get to know more information about Greywacke and Felsite origin and discoverer, etymology and class.

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History of Greywacke and Felsite

The history of Greywacke and Felsite 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.

Greywacke and Felsite Origin and Discoverer

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

Etymology of Greywacke and Felsite

Along with Greywacke and Felsite definition, know more about the etymology of Greywacke and Felsite. Etymology of Greywacke and Felsite gives information about origin and formation of a particular rock. Know more about Formation of Greywacke and Formation of Felsite. The etymology of Greywacke is From German Grauwacke, from grau grey + wacke while that of Felsite is From German Grauwacke, from grau grey + wacke. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Greywacke belongs to Sedimentary Rocks while Felsite belongs to Igneous Rocks. The sub-class, group and other categories of Greywacke and Felsite are listed below.

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