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Teschenite and Trondhjemite Definition


Trondhjemite 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   
Trondhjemite is a leucocratic (light-colored) intrusive igneous rock. It is a variety of tonalite in which the plagioclase is mostly in the form of oligoclase. Trondhjemites are sometimes known as plagiogranites.   

History
  
  

Origin
Scotland   
Tonale, Italy   

Discoverer
Unknown   
Unknown   

Etymology
From its occurrence near Teschen. now known as Cieszyn, Pol., Scotland   
Not Available   

Class
Igneous Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Hard Rock   
Durable Rock, Hard Rock   

Family
  
  

Group
Plutonic   
Plutonic   

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

Texture >>
<< Summary

Definition of Teschenite and Trondhjemite

The general Teschenite and Trondhjemite 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, Trondhjemite is a leucocratic (light-colored) intrusive igneous rock. It is a variety of tonalite in which the plagioclase is mostly in the form of oligoclase. Trondhjemites are sometimes known as plagiogranites.. Along with definition of Teschenite and Trondhjemite, get to know about Properties of Teschenite and Trondhjemite. Get to know more information about Teschenite and Trondhjemite origin and discoverer, etymology and class.

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History of Teschenite and Trondhjemite

The history of Teschenite and Trondhjemite 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 Trondhjemite Origin and Discoverer

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

Etymology of Teschenite and Trondhjemite

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

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