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Gossan and Nephelinite Definition


Nephelinite and Gossan Definition


Definition

Definition
Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.   
Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).   

History
  
  

Origin
Indonesia   
Brazil   

Discoverer
Cornish Gossen   
Unknown   

Etymology
From Cornish gossen from gos, blood from Old Cornish guit   
from French néphéline, from Greek nephelē   

Class
Metamorphic Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Plutonic   

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

Texture >>
<< Summary

Definition of Gossan and Nephelinite

The general Gossan and Nephelinite definition can be stated as: Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.. 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 Gossan and Nephelinite, get to know about Properties of Gossan and Nephelinite. Get to know more information about Gossan and Nephelinite origin and discoverer, etymology and class.

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History of Gossan and Nephelinite

The history of Gossan 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.

Gossan and Nephelinite Origin and Discoverer

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

Etymology of Gossan and Nephelinite

Along with Gossan and Nephelinite definition, know more about the etymology of Gossan and Nephelinite. Etymology of Gossan and Nephelinite gives information about origin and formation of a particular rock. Know more about Formation of Gossan and Formation of Nephelinite. The etymology of Gossan is From Cornish gossen from gos, blood from Old Cornish guit while that of Nephelinite is From Cornish gossen from gos, blood from Old Cornish guit. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Gossan belongs to Metamorphic Rocks while Nephelinite belongs to Igneous Rocks. The sub-class, group and other categories of Gossan and Nephelinite are listed below.

For Gossan,

For Nephelinite,

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