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Picrite and Nephelinite Definition


Nephelinite and Picrite Definition


Definition

Definition
Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine   
Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).   

History
  
  

Origin
Hawaii Islands   
Brazil   

Discoverer
Unknown   
Unknown   

Etymology
From Greek pikros bitter + -ite, 19th century   
from French néphéline, from Greek nephelē   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Plutonic   

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

Texture >>
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Definition of Picrite and Nephelinite

The general Picrite and Nephelinite definition can be stated as: Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine. On the other hand, Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).. Along with definition of Picrite and Nephelinite, get to know about Properties of Picrite and Nephelinite. Get to know more information about Picrite and Nephelinite origin and discoverer, etymology and class.

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History of Picrite and Nephelinite

The history of Picrite and Nephelinite 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.

Picrite and Nephelinite Origin and Discoverer

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

Etymology of Picrite and Nephelinite

Along with Picrite and Nephelinite definition, know more about the etymology of Picrite and Nephelinite. Etymology of Picrite and Nephelinite gives information about origin and formation of a particular rock. Know more about Formation of Picrite and Formation of Nephelinite. The etymology of Picrite is From Greek pikros bitter + -ite, 19th century while that of Nephelinite is From Greek pikros bitter + -ite, 19th century. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Picrite and Nephelinite belong to Igneous Rocks. The sub-class, group and other categories of Picrite and Nephelinite are listed below.

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For Nephelinite,

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