Home
Compare Rocks


Essexite  and Ijolite Definition


Ijolite and Essexite  Definition


Definition

Definition
Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock   
Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite   

History
  
  

Origin
USA   
Finland, Europe   

Discoverer
Unknown   
Unknown   

Etymology
From the locality in Essex County, Massachusetts,US   
From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Plutonic   

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

Texture >>
<< Summary

Definition of Essexite  and Ijolite

The general Essexite  and Ijolite 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, Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite. Along with definition of Essexite  and Ijolite, get to know about Properties of Essexite  and Ijolite. Get to know more information about Essexite  and Ijolite origin and discoverer, etymology and class.

Compare Igneous Rocks

History of Essexite  and Ijolite

The history of Essexite  and Ijolite 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 Ijolite Origin and Discoverer

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

Etymology of Essexite  and Ijolite

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

For Essexite ,

For Ijolite,

Igneous Rocks

Igneous Rocks

» More Igneous Rocks

Compare Igneous Rocks

» More Compare Igneous Rocks