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Nephelinite and Siltstone Definition


Siltstone and Nephelinite Definition


Definition

Definition
Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).   
Siltstone can be defined as a fine-grained sedimentary rock which mainly consists of consolidated silt   

History
  
  

Origin
Brazil   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
from French néphéline, from Greek nephelē   
From English word silt and stone and from Proto-Indo-European root sal and stainaz   

Class
Igneous Rocks   
Sedimentary Rocks   

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

Family
  
  

Group
Plutonic   
Not Applicable   

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

Texture >>
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Definition of Nephelinite and Siltstone

The general Nephelinite and Siltstone 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, Siltstone can be defined as a fine-grained sedimentary rock which mainly consists of consolidated silt. Along with definition of Nephelinite and Siltstone, get to know about Properties of Nephelinite and Siltstone. Get to know more information about Nephelinite and Siltstone origin and discoverer, etymology and class.

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History of Nephelinite and Siltstone

The history of Nephelinite and Siltstone 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 Siltstone Origin and Discoverer

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

Etymology of Nephelinite and Siltstone

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

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