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Trachyte and Essexite  Definition


Essexite  and Trachyte Definition


Definition

Definition
Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar   
Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock   

History
  
  

Origin
Unknown   
USA   

Discoverer
Alexandre Brongniart and René Just Haüy   
Unknown   

Etymology
From Greek trakhus rough’ or trakhutēs roughness   
From the locality in Essex County, Massachusetts,US   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Plutonic   

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

Texture >>
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Definition of Trachyte and Essexite 

The general Trachyte and Essexite  definition can be stated as: Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar. On the other hand, Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock. Along with definition of Trachyte and Essexite , get to know about Properties of Trachyte and Essexite . Get to know more information about Trachyte and Essexite  origin and discoverer, etymology and class.

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History of Trachyte and Essexite 

The history of Trachyte and Essexite  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.

Trachyte and Essexite  Origin and Discoverer

Trachyte and Essexite  definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Trachyte and Essexite . In this section, you will know about Trachyte and Essexite  Origin and Discoverer. Origin of Trachyte is Unknown whereas Origin of Essexite  is USA. It is interesting to know the name of Trachyte and Essexite  discoverer. The Discoverer of Trachyte is Alexandre Brongniart and René Just Haüy and the discoverer of Essexite  is Unknown.

Etymology of Trachyte and Essexite 

Along with Trachyte and Essexite  definition, know more about the etymology of Trachyte and Essexite . Etymology of Trachyte and Essexite  gives information about origin and formation of a particular rock. Know more about Formation of Trachyte and Formation of Essexite . The etymology of Trachyte is From Greek trakhus rough’ or trakhutēs roughness while that of Essexite  is From Greek trakhus rough’ or trakhutēs roughness. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Trachyte and Essexite  belong to Igneous Rocks. The sub-class, group and other categories of Trachyte and Essexite  are listed below.

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