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Syenite and Variolite Definition


Variolite and Syenite Definition


Definition

Definition
Syenite is a coarse-grained igneous rock which is composed mainly of alkali feldspar and various ferromagnesian minerals  
Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance  

History
  
  

Origin
-  
France  

Discoverer
Unknown  
Unknown  

Etymology
From French syénite, from Latin Syenites (lapis ) (stone) of Syene  
From Latin varius, speckled, variegated  

Class
Igneous Rocks  
Igneous Rocks  

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

Family
  
  

Group
Plutonic  
Volcanic  

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

Texture >>
<< Summary

Definition of Syenite and Variolite

The general Syenite and Variolite definition can be stated as: Syenite is a coarse-grained igneous rock which is composed mainly of alkali feldspar and various ferromagnesian minerals. On the other hand, Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance. Along with definition of Syenite and Variolite, get to know about Properties of Syenite and Variolite. Get to know more information about Syenite and Variolite origin and discoverer, etymology and class.

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History of Syenite and Variolite

The history of Syenite and Variolite 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.

Syenite and Variolite Origin and Discoverer

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

Etymology of Syenite and Variolite

Along with Syenite and Variolite definition, know more about the etymology of Syenite and Variolite. Etymology of Syenite and Variolite gives information about origin and formation of a particular rock. Know more about Formation of Syenite and Formation of Variolite. The etymology of Syenite is From French syénite, from Latin Syenites (lapis ) (stone) of Syene while that of Variolite is From French syénite, from Latin Syenites (lapis ) (stone) of Syene. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Syenite and Variolite belong to Igneous Rocks. The sub-class, group and other categories of Syenite and Variolite are listed below.

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