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Foidolite
Foidolite

Essexite 
Essexite 



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Foidolite
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Essexite 

Foidolite and Essexite  Definition

1 Definition
1.1 Definition
Foidolite is a rare type of coarse-grained intrusive igneous rock with a feldspathoid mineral content greater than 60%
Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock
1.2 History
1.2.1 Origin
Unknown
USA
1.2.2 Discoverer
Unknown
Unknown
1.3 Etymology
From the mineral feldspathoid which is the main content of rock
From the locality in Essex County, Massachusetts,US
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Soft Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Plutonic
Plutonic
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Definition of Foidolite and Essexite 

The general Foidolite and Essexite  definition can be stated as: Foidolite is a rare type of coarse-grained intrusive igneous rock with a feldspathoid mineral content greater than 60%. 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 Foidolite and Essexite , get to know about Properties of Foidolite and Essexite . Get to know more information about Foidolite and Essexite  origin and discoverer, etymology and class.

History of Foidolite and Essexite 

The history of Foidolite 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.

Foidolite and Essexite  Origin and Discoverer

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

Etymology of Foidolite and Essexite 

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

For Foidolite,

  • Sub-class: Durable Rock and Soft Rock
  • Group: Plutonic
  • Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock

For Essexite ,

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