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Variolite and Pumice Definition


Pumice and Variolite Definition


Definition

Definition
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   
Pumice is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals   

History
  
  

Origin
France   
Spain   

Discoverer
Unknown   
Unknown   

Etymology
From Latin varius, speckled, variegated   
From Old French pomis, from a Latin dialect variant of pumex   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Volcanic   

Other Categories
Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture >>
<< Summary

Definition of Variolite and Pumice

The general Variolite and Pumice definition can be stated as: 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. On the other hand, Pumice is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals. Along with definition of Variolite and Pumice, get to know about Properties of Variolite and Pumice. Get to know more information about Variolite and Pumice origin and discoverer, etymology and class.

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History of Variolite and Pumice

The history of Variolite and Pumice 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.

Variolite and Pumice Origin and Discoverer

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

Etymology of Variolite and Pumice

Along with Variolite and Pumice definition, know more about the etymology of Variolite and Pumice. Etymology of Variolite and Pumice gives information about origin and formation of a particular rock. Know more about Formation of Variolite and Formation of Pumice. The etymology of Variolite is From Latin varius, speckled, variegated while that of Pumice is From Latin varius, speckled, variegated. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Variolite and Pumice belong to Igneous Rocks. The sub-class, group and other categories of Variolite and Pumice are listed below.

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For Pumice,

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