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Nephelinite and Foidolite Definition


Foidolite and Nephelinite Definition


Definition

Definition
Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).   
Foidolite is a rare type of coarse-grained intrusive igneous rock with a feldspathoid mineral content greater than 60%   

History
  
  

Origin
Brazil   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
from French néphéline, from Greek nephelē   
From the mineral feldspathoid which is the main content of rock   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Plutonic   

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

Texture >>
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Definition of Nephelinite and Foidolite

The general Nephelinite and Foidolite 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, Foidolite is a rare type of coarse-grained intrusive igneous rock with a feldspathoid mineral content greater than 60%. Along with definition of Nephelinite and Foidolite, get to know about Properties of Nephelinite and Foidolite. Get to know more information about Nephelinite and Foidolite origin and discoverer, etymology and class.

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History of Nephelinite and Foidolite

The history of Nephelinite and Foidolite 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 Foidolite Origin and Discoverer

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

Etymology of Nephelinite and Foidolite

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

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