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Pumice and Greywacke Definition


Greywacke and Pumice Definition


Definition

Definition
Pumice is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals   
Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay   

History
  
  

Origin
Spain   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From Old French pomis, from a Latin dialect variant of pumex   
From German Grauwacke, from grau grey + wacke   

Class
Igneous Rocks   
Sedimentary Rocks   

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

Family
  
  

Group
Volcanic   
Not Applicable   

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

Texture >>
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Definition of Pumice and Greywacke

The general Pumice and Greywacke definition can be stated as: Pumice is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals. On the other hand, Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay. Along with definition of Pumice and Greywacke, get to know about Properties of Pumice and Greywacke. Get to know more information about Pumice and Greywacke origin and discoverer, etymology and class.

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History of Pumice and Greywacke

The history of Pumice and Greywacke 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.

Pumice and Greywacke Origin and Discoverer

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

Etymology of Pumice and Greywacke

Along with Pumice and Greywacke definition, know more about the etymology of Pumice and Greywacke. Etymology of Pumice and Greywacke gives information about origin and formation of a particular rock. Know more about Formation of Pumice and Formation of Greywacke. The etymology of Pumice is From Old French pomis, from a Latin dialect variant of pumex while that of Greywacke is From Old French pomis, from a Latin dialect variant of pumex. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Pumice belongs to Igneous Rocks while Greywacke belongs to Sedimentary Rocks. The sub-class, group and other categories of Pumice and Greywacke are listed below.

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