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Borolanite and Porphyry Definition


Porphyry 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   
Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix   

History
  
  

Origin
Scotland   
Egypt   

Discoverer
Unknown   
Unknown   

Etymology
From Alkalic Igneous complex near Loch Borralan in northwest Scotland   
From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites   

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 >>
<< Summary

Definition of Borolanite and Porphyry

The general Borolanite and Porphyry 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, Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix. Along with definition of Borolanite and Porphyry, get to know about Properties of Borolanite and Porphyry. Get to know more information about Borolanite and Porphyry origin and discoverer, etymology and class.

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History of Borolanite and Porphyry

The history of Borolanite and Porphyry 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 Porphyry Origin and Discoverer

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

Etymology of Borolanite and Porphyry

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

For Borolanite,

For Porphyry,

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