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Teschenite and Nepheline Syenite Definition


Nepheline Syenite and Teschenite Definition


Definition

Definition
Teschenite is coarse- to fine-grained, dark-coloured intrusive igneous rock that usually occurs in sills, dikes and irregular masses and is always altered to some extent   
Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz   

History
  
  

Origin
Scotland   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From its occurrence near Teschen. now known as Cieszyn, Pol., Scotland   
From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Plutonic   

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

Texture >>
<< Summary

Definition of Teschenite and Nepheline Syenite

The general Teschenite and Nepheline Syenite definition can be stated as: Teschenite is coarse- to fine-grained, dark-coloured intrusive igneous rock that usually occurs in sills, dikes and irregular masses and is always altered to some extent. On the other hand, Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz. Along with definition of Teschenite and Nepheline Syenite, get to know about Properties of Teschenite and Nepheline Syenite. Get to know more information about Teschenite and Nepheline Syenite origin and discoverer, etymology and class.

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History of Teschenite and Nepheline Syenite

The history of Teschenite and Nepheline Syenite 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.

Teschenite and Nepheline Syenite Origin and Discoverer

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

Etymology of Teschenite and Nepheline Syenite

Along with Teschenite and Nepheline Syenite definition, know more about the etymology of Teschenite and Nepheline Syenite. Etymology of Teschenite and Nepheline Syenite gives information about origin and formation of a particular rock. Know more about Formation of Teschenite and Formation of Nepheline Syenite. The etymology of Teschenite is From its occurrence near Teschen. now known as Cieszyn, Pol., Scotland while that of Nepheline Syenite is From its occurrence near Teschen. now known as Cieszyn, Pol., Scotland. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Teschenite and Nepheline Syenite belong to Igneous Rocks. The sub-class, group and other categories of Teschenite and Nepheline Syenite are listed below.

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