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Nephelinite and Jasperoid Definition


Jasperoid and Nephelinite Definition


Definition

Definition
Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).   
Jasperoid is a rare, peculiar type of metasomatic alteration of rocks   

History
  
  

Origin
Brazil   
USA   

Discoverer
Unknown   
Unknown   

Etymology
from French néphéline, from Greek nephelē   
From silica, the main mineral content of Jasperoid   

Class
Igneous Rocks   
Sedimentary Rocks   

Sub-Class
Durable Rock, Hard Rock   
Durable Rock, Medium Hardness Rock   

Family
  
  

Group
Plutonic   
Not Applicable   

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 Jasperoid

The general Nephelinite and Jasperoid 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, Jasperoid is a rare, peculiar type of metasomatic alteration of rocks. Along with definition of Nephelinite and Jasperoid, get to know about Properties of Nephelinite and Jasperoid. Get to know more information about Nephelinite and Jasperoid origin and discoverer, etymology and class.

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History of Nephelinite and Jasperoid

The history of Nephelinite and Jasperoid 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 Jasperoid Origin and Discoverer

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

Etymology of Nephelinite and Jasperoid

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

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For Jasperoid,

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