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Chert and Borolanite Definition


Borolanite and Chert Definition


Definition

Definition
Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture   
Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix   

History
  
  

Origin
Unknown   
Scotland   

Discoverer
Unknown   
Unknown   

Etymology
From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use   
From Alkalic Igneous complex near Loch Borralan in northwest Scotland   

Class
Sedimentary Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Plutonic   

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

Texture >>
<< Summary

Definition of Chert and Borolanite

The general Chert and Borolanite definition can be stated as: Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture. On the other hand, Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix. Along with definition of Chert and Borolanite, get to know about Properties of Chert and Borolanite. Get to know more information about Chert and Borolanite origin and discoverer, etymology and class.

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History of Chert and Borolanite

The history of Chert and Borolanite 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.

Chert and Borolanite Origin and Discoverer

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

Etymology of Chert and Borolanite

Along with Chert and Borolanite definition, know more about the etymology of Chert and Borolanite. Etymology of Chert and Borolanite gives information about origin and formation of a particular rock. Know more about Formation of Chert and Formation of Borolanite. The etymology of Chert is From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use while that of Borolanite is From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Chert belongs to Sedimentary Rocks while Borolanite belongs to Igneous Rocks. The sub-class, group and other categories of Chert and Borolanite are listed below.

For Chert,

For Borolanite,

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