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Ijolite and Anthracite Definition


Anthracite and Ijolite Definition


Definition

Definition
Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite   
Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster   

History
  
  

Origin
Finland, Europe   
Pennsylvania, U.S.   

Discoverer
Unknown   
Unknown   

Etymology
From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone   
From Greek anthrakites, from anthrax, anthrak meaning coal   

Class
Igneous Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Plutonic   
Not Applicable   

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

Texture >>
<< Summary

Definition of Ijolite and Anthracite

The general Ijolite and Anthracite definition can be stated as: Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite. On the other hand, Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster. Along with definition of Ijolite and Anthracite, get to know about Properties of Ijolite and Anthracite. Get to know more information about Ijolite and Anthracite origin and discoverer, etymology and class.

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History of Ijolite and Anthracite

The history of Ijolite and Anthracite 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.

Ijolite and Anthracite Origin and Discoverer

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

Etymology of Ijolite and Anthracite

Along with Ijolite and Anthracite definition, know more about the etymology of Ijolite and Anthracite. Etymology of Ijolite and Anthracite gives information about origin and formation of a particular rock. Know more about Formation of Ijolite and Formation of Anthracite. The etymology of Ijolite is From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone while that of Anthracite is From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Ijolite belongs to Igneous Rocks while Anthracite belongs to Metamorphic Rocks. The sub-class, group and other categories of Ijolite and Anthracite are listed below.

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