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Hornfels and Greywacke Definition


Greywacke and Hornfels Definition


Definition

Definition
Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock   
Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay   

History
  
  

Origin
New Zealand   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From German which means hornstone   
From German Grauwacke, from grau grey + wacke   

Class
Metamorphic Rocks   
Sedimentary Rocks   

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

Family
  
  

Group
Not Applicable   
Not Applicable   

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

Texture >>
<< Summary

Definition of Hornfels and Greywacke

The general Hornfels and Greywacke definition can be stated as: Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock. On the other hand, Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay. Along with definition of Hornfels and Greywacke, get to know about Properties of Hornfels and Greywacke. Get to know more information about Hornfels and Greywacke origin and discoverer, etymology and class.

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History of Hornfels and Greywacke

The history of Hornfels and Greywacke 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.

Hornfels and Greywacke Origin and Discoverer

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

Etymology of Hornfels and Greywacke

Along with Hornfels and Greywacke definition, know more about the etymology of Hornfels and Greywacke. Etymology of Hornfels and Greywacke gives information about origin and formation of a particular rock. Know more about Formation of Hornfels and Formation of Greywacke. The etymology of Hornfels is From German which means hornstone while that of Greywacke is From German which means hornstone. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Hornfels belongs to Metamorphic Rocks while Greywacke belongs to Sedimentary Rocks. The sub-class, group and other categories of Hornfels and Greywacke are listed below.

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