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Teschenite and Rapakivi Granite Definition


Rapakivi Granite 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   
Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase   

History
  
  

Origin
Scotland   
Finland, Europe   

Discoverer
Unknown   
Jakob Sederholm   

Etymology
From its occurrence near Teschen. now known as Cieszyn, Pol., Scotland   
From Finnish Rapakivi which stands for crumbly rock   

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, Opaque Rock   

Texture >>
<< Summary

Definition of Teschenite and Rapakivi Granite

The general Teschenite and Rapakivi Granite 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, Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase. Along with definition of Teschenite and Rapakivi Granite, get to know about Properties of Teschenite and Rapakivi Granite. Get to know more information about Teschenite and Rapakivi Granite origin and discoverer, etymology and class.

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History of Teschenite and Rapakivi Granite

The history of Teschenite and Rapakivi Granite 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 Rapakivi Granite Origin and Discoverer

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

Etymology of Teschenite and Rapakivi Granite

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

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