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Borolanite and Dacite Definition


Dacite and Borolanite Definition


Definition

Definition
Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix   
Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite   

History
  
  

Origin
Scotland   
Romania and Moldova, Europe   

Discoverer
Unknown   
Unknown   

Etymology
From Alkalic Igneous complex near Loch Borralan in northwest Scotland   
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
Fine Grained Rock, Opaque Rock   
Fine Grained Rock, Medium Grained Rock, Opaque Rock   

Texture >>
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Definition of Borolanite and Dacite

The general Borolanite and Dacite definition can be stated as: Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix. On the other hand, Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite. Along with definition of Borolanite and Dacite, get to know about Properties of Borolanite and Dacite. Get to know more information about Borolanite and Dacite origin and discoverer, etymology and class.

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History of Borolanite and Dacite

The history of Borolanite 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.

Borolanite and Dacite Origin and Discoverer

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

Etymology of Borolanite and Dacite

Along with Borolanite and Dacite definition, know more about the etymology of Borolanite and Dacite. Etymology of Borolanite and Dacite gives information about origin and formation of a particular rock. Know more about Formation of Borolanite and Formation of Dacite. The etymology of Borolanite is From Alkalic Igneous complex near Loch Borralan in northwest Scotland while that of Dacite is From Alkalic Igneous complex near Loch Borralan in northwest Scotland. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Borolanite and Dacite belong to Igneous Rocks. The sub-class, group and other categories of Borolanite and Dacite are listed below.

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