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Porphyry and Scoria Definition


Scoria and Porphyry Definition


Definition

Definition
Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix   
Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities   

History
  
  

Origin
Egypt   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites   
From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Volcanic   

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

Texture >>
<< Summary

Definition of Porphyry and Scoria

The general Porphyry and Scoria definition can be stated as: Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix. On the other hand, Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities. Along with definition of Porphyry and Scoria, get to know about Properties of Porphyry and Scoria. Get to know more information about Porphyry and Scoria origin and discoverer, etymology and class.

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History of Porphyry and Scoria

The history of Porphyry and Scoria 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.

Porphyry and Scoria Origin and Discoverer

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

Etymology of Porphyry and Scoria

Along with Porphyry and Scoria definition, know more about the etymology of Porphyry and Scoria. Etymology of Porphyry and Scoria gives information about origin and formation of a particular rock. Know more about Formation of Porphyry and Formation of Scoria. The etymology of Porphyry is From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites while that of Scoria is From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Porphyry and Scoria belong to Igneous Rocks. The sub-class, group and other categories of Porphyry and Scoria are listed below.

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