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Nephelinite and Adamellite Definition


Adamellite and Nephelinite Definition


Definition

Definition
Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).   
Adamellite is a coarse-grained porphyritic igneous rock, a variety of Monzogranite and dominated by phenocrysts of orthoclase in a granular groundmass of perthite, plagioclase and quartz   

History
  
  

Origin
Brazil   
Italy   

Discoverer
Unknown   
Unknown   

Etymology
from French néphéline, from Greek nephelē   
From German adamellit and from Monte Adamello, a mountain in Italy, its locality   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Plutonic   

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

Texture >>
<< Summary

Definition of Nephelinite and Adamellite

The general Nephelinite and Adamellite definition can be stated as: Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).. On the other hand, Adamellite is a coarse-grained porphyritic igneous rock, a variety of Monzogranite and dominated by phenocrysts of orthoclase in a granular groundmass of perthite, plagioclase and quartz. Along with definition of Nephelinite and Adamellite, get to know about Properties of Nephelinite and Adamellite. Get to know more information about Nephelinite and Adamellite origin and discoverer, etymology and class.

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History of Nephelinite and Adamellite

The history of Nephelinite and Adamellite 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.

Nephelinite and Adamellite Origin and Discoverer

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

Etymology of Nephelinite and Adamellite

Along with Nephelinite and Adamellite definition, know more about the etymology of Nephelinite and Adamellite. Etymology of Nephelinite and Adamellite gives information about origin and formation of a particular rock. Know more about Formation of Nephelinite and Formation of Adamellite. The etymology of Nephelinite is from French néphéline, from Greek nephelē while that of Adamellite is from French néphéline, from Greek nephelē. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Nephelinite and Adamellite belong to Igneous Rocks. The sub-class, group and other categories of Nephelinite and Adamellite are listed below.

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