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Tuff and Porphyry Definition


Porphyry and Tuff Definition


Definition

Definition
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption   
Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix   

History
  
  

Origin
Italy   
Egypt   

Discoverer
Unknown   
Unknown   

Etymology
From a Latin word tophous then in Italian tufo and finally tuff   
From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Plutonic   

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

Texture >>
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Definition of Tuff and Porphyry

The general Tuff and Porphyry definition can be stated as: Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. On the other hand, Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix. Along with definition of Tuff and Porphyry, get to know about Properties of Tuff and Porphyry. Get to know more information about Tuff and Porphyry origin and discoverer, etymology and class.

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History of Tuff and Porphyry

The history of Tuff and Porphyry 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.

Tuff and Porphyry Origin and Discoverer

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

Etymology of Tuff and Porphyry

Along with Tuff and Porphyry definition, know more about the etymology of Tuff and Porphyry. Etymology of Tuff and Porphyry gives information about origin and formation of a particular rock. Know more about Formation of Tuff and Formation of Porphyry. The etymology of Tuff is From a Latin word tophous then in Italian tufo and finally tuff while that of Porphyry is From a Latin word tophous then in Italian tufo and finally tuff. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Tuff and Porphyry belong to Igneous Rocks. The sub-class, group and other categories of Tuff and Porphyry are listed below.

For Tuff,

For Porphyry,

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