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Anthracite and Gneiss Definition


Gneiss and Anthracite Definition


Definition

Definition
Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster   
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
Pennsylvania, U.S.   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From Greek anthrakites, from anthrax, anthrak meaning coal   
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
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock   
Coarse Grained Rock, Medium Grained Rock, Opaque Rock   

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Definition of Anthracite and Gneiss

The general Anthracite and Gneiss definition can be stated as: Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster. 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 Anthracite and Gneiss, get to know about Properties of Anthracite and Gneiss. Get to know more information about Anthracite and Gneiss origin and discoverer, etymology and class.

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History of Anthracite and Gneiss

The history of Anthracite 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.

Anthracite and Gneiss Origin and Discoverer

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

Etymology of Anthracite and Gneiss

Along with Anthracite and Gneiss definition, know more about the etymology of Anthracite and Gneiss. Etymology of Anthracite and Gneiss gives information about origin and formation of a particular rock. Know more about Formation of Anthracite and Formation of Gneiss. The etymology of Anthracite is From Greek anthrakites, from anthrax, anthrak meaning coal while that of Gneiss is From Greek anthrakites, from anthrax, anthrak meaning coal. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Anthracite and Gneiss belong to Metamorphic Rocks. The sub-class, group and other categories of Anthracite and Gneiss are listed below.

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