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Pseudotachylite and Ijolite Definition


Ijolite and Pseudotachylite Definition


Definition

Definition
Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.   
Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite   

History
  
  

Origin
USA   
Finland, Europe   

Discoverer
Unknown   
Unknown   

Etymology
From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults.   
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
Metamorphic Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Plutonic   

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

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Definition of Pseudotachylite and Ijolite

The general Pseudotachylite and Ijolite definition can be stated as: Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.. 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 Pseudotachylite and Ijolite, get to know about Properties of Pseudotachylite and Ijolite. Get to know more information about Pseudotachylite and Ijolite origin and discoverer, etymology and class.

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History of Pseudotachylite and Ijolite

The history of Pseudotachylite 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.

Pseudotachylite and Ijolite Origin and Discoverer

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

Etymology of Pseudotachylite and Ijolite

Along with Pseudotachylite and Ijolite definition, know more about the etymology of Pseudotachylite and Ijolite. Etymology of Pseudotachylite and Ijolite gives information about origin and formation of a particular rock. Know more about Formation of Pseudotachylite and Formation of Ijolite. The etymology of Pseudotachylite is From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults. while that of Ijolite is From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults.. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Pseudotachylite belongs to Metamorphic Rocks while Ijolite belongs to Igneous Rocks. The sub-class, group and other categories of Pseudotachylite and Ijolite are listed below.

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