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Essexite  and Trachyte Definition


Trachyte and Essexite  Definition


Definition

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

History
  
  

Origin
USA   
Unknown   

Discoverer
Unknown   
Alexandre Brongniart and René Just Haüy   

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

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Volcanic   

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

Texture >>
<< Summary

Definition of Essexite  and Trachyte

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

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History of Essexite  and Trachyte

The history of Essexite  and Trachyte 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.

Essexite  and Trachyte Origin and Discoverer

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

Etymology of Essexite  and Trachyte

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

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