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Phyllite
Phyllite

Essexite 
Essexite 



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Phyllite and Essexite  Definition

1 Definition
1.1 Definition
Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks
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 Greek phullon leaf + -ite1
From the locality in Essex County, Massachusetts,US
1.4 Class
Metamorphic Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Soft Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Not Applicable
Plutonic
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Definition of Phyllite and Essexite 

The general Phyllite and Essexite  definition can be stated as: Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks. 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 Phyllite and Essexite , get to know about Properties of Phyllite and Essexite . Get to know more information about Phyllite and Essexite  origin and discoverer, etymology and class.

History of Phyllite and Essexite 

The history of Phyllite 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.

Phyllite and Essexite  Origin and Discoverer

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

Etymology of Phyllite and Essexite 

Along with Phyllite and Essexite  definition, know more about the etymology of Phyllite and Essexite . Etymology of Phyllite and Essexite  gives information about origin and formation of a particular rock. Know more about Formation of Phyllite and Formation of Essexite . The etymology of Phyllite is From Greek phullon leaf + -ite1 while that of Essexite  is From Greek phullon leaf + -ite1. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Phyllite belongs to Metamorphic Rocks while Essexite  belongs to Igneous Rocks. The sub-class, group and other categories of Phyllite and Essexite  are listed below.

For Phyllite,

  • Sub-class: Durable Rock and Soft Rock
  • Group: Not applicable
  • 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