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Ijolite and Dacite Definition


Dacite and Ijolite Definition


Definition

Definition
Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite   
Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite   

History
  
  

Origin
Finland, Europe   
Romania and Moldova, Europe   

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 Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Volcanic   

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

Texture >>
<< Summary

Definition of Ijolite and Dacite

The general Ijolite and Dacite 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, Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite. Along with definition of Ijolite and Dacite, get to know about Properties of Ijolite and Dacite. Get to know more information about Ijolite and Dacite origin and discoverer, etymology and class.

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History of Ijolite and Dacite

The history of Ijolite and Dacite 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 Dacite Origin and Discoverer

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

Etymology of Ijolite and Dacite

Along with Ijolite and Dacite definition, know more about the etymology of Ijolite and Dacite. Etymology of Ijolite and Dacite gives information about origin and formation of a particular rock. Know more about Formation of Ijolite and Formation of Dacite. 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 Dacite 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 and Dacite belong to Igneous Rocks. The sub-class, group and other categories of Ijolite and Dacite are listed below.

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