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Schist and Variolite Definition


Variolite and Schist Definition


Definition

Definition
Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation   
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
Unknown   
France   

Discoverer
Unknown   
Unknown   

Etymology
From French schiste, Greek skhistos i.e. split   
From Latin varius, speckled, variegated   

Class
Metamorphic Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Volcanic   

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

Texture >>
<< Summary

Definition of Schist and Variolite

The general Schist and Variolite definition can be stated as: Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation. 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 Schist and Variolite, get to know about Properties of Schist and Variolite. Get to know more information about Schist and Variolite origin and discoverer, etymology and class.

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History of Schist and Variolite

The history of Schist 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.

Schist and Variolite Origin and Discoverer

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

Etymology of Schist and Variolite

Along with Schist and Variolite definition, know more about the etymology of Schist and Variolite. Etymology of Schist and Variolite gives information about origin and formation of a particular rock. Know more about Formation of Schist and Formation of Variolite. The etymology of Schist is From French schiste, Greek skhistos i.e. split while that of Variolite is From French schiste, Greek skhistos i.e. split. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Schist belongs to Metamorphic Rocks while Variolite belongs to Igneous Rocks. The sub-class, group and other categories of Schist and Variolite are listed below.

For Schist,

For Variolite,

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