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Teschenite and Ijolite Definition


Ijolite 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   
Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite   

History
  
  

Origin
Scotland   
Finland, Europe   

Discoverer
Unknown   
Unknown   

Etymology
From its occurrence near Teschen. now known as Cieszyn, Pol., Scotland   
From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone   

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   
Coarse Grained Rock, Opaque Rock   

Texture >>
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Definition of Teschenite and Ijolite

The general Teschenite and Ijolite 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, Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite. Along with definition of Teschenite and Ijolite, get to know about Properties of Teschenite and Ijolite. Get to know more information about Teschenite and Ijolite origin and discoverer, etymology and class.

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History of Teschenite and Ijolite

The history of Teschenite and Ijolite 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 Ijolite Origin and Discoverer

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

Etymology of Teschenite and Ijolite

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

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For Ijolite,

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