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Coal and Greenschist Definition


Greenschist and Coal Definition


Definition

Definition
Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds   
Greenschist is a metamorphic rock that is formed under lowest temperatures and pressures and is usually produced by regional metamorphism   

History
  
  

Origin
USA   
Unknown   

Discoverer
John Peter Salley   
Unknown   

Etymology
From the Old English term col, which has meant mineral of fossilized carbon since the 13th century   
From minerals such as chlorite, serpentine, and epidote, and platy minerals such as muscovite and platy serpentine which are green in color   

Class
Sedimentary Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Not Applicable   
Not Applicable   

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

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Definition of Coal and Greenschist

The general Coal and Greenschist definition can be stated as: Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds. On the other hand, Greenschist is a metamorphic rock that is formed under lowest temperatures and pressures and is usually produced by regional metamorphism. Along with definition of Coal and Greenschist, get to know about Properties of Coal and Greenschist. Get to know more information about Coal and Greenschist origin and discoverer, etymology and class.

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History of Coal and Greenschist

The history of Coal and Greenschist 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.

Coal and Greenschist Origin and Discoverer

Coal and Greenschist definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Coal and Greenschist. In this section, you will know about Coal and Greenschist Origin and Discoverer. Origin of Coal is USA whereas Origin of Greenschist is Unknown. It is interesting to know the name of Coal and Greenschist discoverer. The Discoverer of Coal is John Peter Salley and the discoverer of Greenschist is Unknown.

Etymology of Coal and Greenschist

Along with Coal and Greenschist definition, know more about the etymology of Coal and Greenschist. Etymology of Coal and Greenschist gives information about origin and formation of a particular rock. Know more about Formation of Coal and Formation of Greenschist. The etymology of Coal is From the Old English term col, which has meant mineral of fossilized carbon since the 13th century while that of Greenschist is From the Old English term col, which has meant mineral of fossilized carbon since the 13th century. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Coal belongs to Sedimentary Rocks while Greenschist belongs to Metamorphic Rocks. The sub-class, group and other categories of Coal and Greenschist are listed below.

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