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Nepheline Syenite and Comendite Definition


Comendite and Nepheline Syenite Definition


Definition

Definition
Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz   
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite   

History
  
  

Origin
Unknown   
Italy   

Discoverer
Unknown   
Unknown   

Etymology
From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China   
Comendite derives its name from the area of Le Commende on San Pietro Island in Italy   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Volcanic   

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

Texture >>
<< Summary

Definition of Nepheline Syenite and Comendite

The general Nepheline Syenite and Comendite definition can be stated as: Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz. On the other hand, Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite. Along with definition of Nepheline Syenite and Comendite, get to know about Properties of Nepheline Syenite and Comendite. Get to know more information about Nepheline Syenite and Comendite origin and discoverer, etymology and class.

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History of Nepheline Syenite and Comendite

The history of Nepheline Syenite and Comendite 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.

Nepheline Syenite and Comendite Origin and Discoverer

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

Etymology of Nepheline Syenite and Comendite

Along with Nepheline Syenite and Comendite definition, know more about the etymology of Nepheline Syenite and Comendite. Etymology of Nepheline Syenite and Comendite gives information about origin and formation of a particular rock. Know more about Formation of Nepheline Syenite and Formation of Comendite. The etymology of Nepheline Syenite is From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China while that of Comendite is From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Nepheline Syenite and Comendite belong to Igneous Rocks. The sub-class, group and other categories of Nepheline Syenite and Comendite are listed below.

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