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Scoria and Ijolite Definition


Ijolite and Scoria Definition


Definition

Definition
Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities   
Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite   

History
  
  

Origin
Unknown   
Finland, Europe   

Discoverer
Unknown   
Unknown   

Etymology
From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung   
From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Plutonic   

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

Texture >>
<< Summary

Definition of Scoria and Ijolite

The general Scoria and Ijolite definition can be stated as: Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities. On the other hand, Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite. Along with definition of Scoria and Ijolite, get to know about Properties of Scoria and Ijolite. Get to know more information about Scoria and Ijolite origin and discoverer, etymology and class.

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History of Scoria and Ijolite

The history of Scoria and Ijolite 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.

Scoria and Ijolite Origin and Discoverer

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

Etymology of Scoria and Ijolite

Along with Scoria and Ijolite definition, know more about the etymology of Scoria and Ijolite. Etymology of Scoria and Ijolite gives information about origin and formation of a particular rock. Know more about Formation of Scoria and Formation of Ijolite. The etymology of Scoria is From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung while that of Ijolite is From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Scoria and Ijolite belong to Igneous Rocks. The sub-class, group and other categories of Scoria and Ijolite are listed below.

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