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Hornfels and Gneiss Definition


Gneiss 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   
Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks   

History
  
  

Origin
New Zealand   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From German which means hornstone   
From the Middle High German verb gneist (to spark; so called because the rock glitters)   

Class
Metamorphic Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Not Applicable   
Not Applicable   

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

Texture >>
<< Summary

Definition of Hornfels and Gneiss

The general Hornfels and Gneiss 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, Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks. Along with definition of Hornfels and Gneiss, get to know about Properties of Hornfels and Gneiss. Get to know more information about Hornfels and Gneiss origin and discoverer, etymology and class.

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History of Hornfels and Gneiss

The history of Hornfels and Gneiss 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 Gneiss Origin and Discoverer

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

Etymology of Hornfels and Gneiss

Along with Hornfels and Gneiss definition, know more about the etymology of Hornfels and Gneiss. Etymology of Hornfels and Gneiss gives information about origin and formation of a particular rock. Know more about Formation of Hornfels and Formation of Gneiss. The etymology of Hornfels is From German which means hornstone while that of Gneiss 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 and Gneiss belong to Metamorphic Rocks. The sub-class, group and other categories of Hornfels and Gneiss are listed below.

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