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Borolanite and Essexite  Definition


Essexite  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   
Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock   

History
  
  

Origin
Scotland   
USA   

Discoverer
Unknown   
Unknown   

Etymology
From Alkalic Igneous complex near Loch Borralan in northwest Scotland   
From the locality in Essex County, Massachusetts,US   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Plutonic   

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

Texture >>
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Definition of Borolanite and Essexite 

The general Borolanite and Essexite  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, Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock. Along with definition of Borolanite and Essexite , get to know about Properties of Borolanite and Essexite . Get to know more information about Borolanite and Essexite  origin and discoverer, etymology and class.

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History of Borolanite and Essexite 

The history of Borolanite and Essexite  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 Essexite  Origin and Discoverer

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

Etymology of Borolanite and Essexite 

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

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