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Essexite  and Rhyolite Definition


Rhyolite and Essexite  Definition


Definition

Definition
Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock   
Rhyolite is a fine-grained igneous rock which is rich in silica   

History
  
  

Origin
USA   
North America   

Discoverer
Unknown   
Ferdinand von Richthofen   

Etymology
From the locality in Essex County, Massachusetts,US   
From German Rhyolit, from Greek rhuax lava stream + lithos stone   

Class
Igneous Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Hard Rock   
Durable Rock, Hard Rock   

Family
  
  

Group
Plutonic   
Volcanic   

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

Texture >>
<< Summary

Definition of Essexite  and Rhyolite

The general Essexite  and Rhyolite 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, Rhyolite is a fine-grained igneous rock which is rich in silica. Along with definition of Essexite  and Rhyolite, get to know about Properties of Essexite  and Rhyolite. Get to know more information about Essexite  and Rhyolite origin and discoverer, etymology and class.

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History of Essexite  and Rhyolite

The history of Essexite  and Rhyolite 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 Rhyolite Origin and Discoverer

Essexite  and Rhyolite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Essexite  and Rhyolite. In this section, you will know about Essexite  and Rhyolite Origin and Discoverer. Origin of Essexite  is USA whereas Origin of Rhyolite is North America. It is interesting to know the name of Essexite  and Rhyolite discoverer. The Discoverer of Essexite  is Unknown and the discoverer of Rhyolite is Ferdinand von Richthofen.

Etymology of Essexite  and Rhyolite

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

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