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Borolanite and Phonolite Definition


Phonolite and Borolanite Definition


Definition

Definition
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   
Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic   

History
  
  

Origin
Scotland   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From Alkalic Igneous complex near Loch Borralan in northwest Scotland   
From the Greek meaning sounding stone because of the metallic sound it produces if an unfractured plate is hit   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Not Applicable   

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

Texture >>
<< Summary

Definition of Borolanite and Phonolite

The general Borolanite and Phonolite definition can be stated as: 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. On the other hand, Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic. Along with definition of Borolanite and Phonolite, get to know about Properties of Borolanite and Phonolite. Get to know more information about Borolanite and Phonolite origin and discoverer, etymology and class.

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History of Borolanite and Phonolite

The history of Borolanite and Phonolite 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.

Borolanite and Phonolite Origin and Discoverer

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

Etymology of Borolanite and Phonolite

Along with Borolanite and Phonolite definition, know more about the etymology of Borolanite and Phonolite. Etymology of Borolanite and Phonolite gives information about origin and formation of a particular rock. Know more about Formation of Borolanite and Formation of Phonolite. The etymology of Borolanite is From Alkalic Igneous complex near Loch Borralan in northwest Scotland while that of Phonolite is From Alkalic Igneous complex near Loch Borralan in northwest Scotland. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Borolanite and Phonolite belong to Igneous Rocks. The sub-class, group and other categories of Borolanite and Phonolite are listed below.

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For Phonolite,

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