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Essexite 
Essexite 

Nephelinite
Nephelinite



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Nephelinite

Essexite  and Nephelinite Definition

1 Definition
1.1 Definition
Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock
Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).
1.2 History
1.2.1 Origin
USA
Brazil
1.2.2 Discoverer
Unknown
Unknown
1.3 Etymology
From the locality in Essex County, Massachusetts,US
from French néphéline, from Greek nephelē
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Plutonic
Plutonic
1.6 Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Definition of Essexite  and Nephelinite

The general Essexite  and Nephelinite 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, Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).. Along with definition of Essexite  and Nephelinite, get to know about Properties of Essexite  and Nephelinite. Get to know more information about Essexite  and Nephelinite origin and discoverer, etymology and class.

History of Essexite  and Nephelinite

The history of Essexite  and Nephelinite 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 Nephelinite Origin and Discoverer

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

Etymology of Essexite  and Nephelinite

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

For Essexite ,

  • Sub-class: Durable Rock and Hard Rock
  • Group: Plutonic
  • Other Categories: Fine grained rock and Opaque rock

For Nephelinite,

  • Sub-class: Durable Rock and Hard Rock
  • Group: Plutonic
  • Other Categories: Fine grained rock and Opaque rock