Essexite and Tuff Definition
Definition
Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock
  
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption
  
History
  
  
Origin
USA
  
Italy
  
Discoverer
Unknown
  
Unknown
  
Etymology
From the locality in Essex County, Massachusetts,US
  
From a Latin word tophous then in Italian tufo and finally tuff
  
Class
Igneous Rocks
  
Igneous Rocks
  
Sub-Class
Durable Rock, Hard Rock
  
Durable Rock, Medium Hardness Rock
  
Family
  
  
Group
Plutonic
  
Volcanic
  
Other Categories
Fine Grained Rock, Opaque Rock
  
Fine Grained Rock, Opaque Rock
  
Definition of Essexite and Tuff
The general Essexite and Tuff 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, Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Along with definition of Essexite and Tuff, get to know about Properties of Essexite and Tuff. Get to know more information about Essexite and Tuff origin and discoverer, etymology and class.
History of Essexite and Tuff
The history of Essexite and Tuff 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 Tuff Origin and Discoverer
Essexite and Tuff definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Essexite and Tuff. In this section, you will know about Essexite and Tuff Origin and Discoverer. Origin of Essexite is USA whereas Origin of Tuff is Italy. It is interesting to know the name of Essexite and Tuff discoverer. The discoverer of Essexite and Tuff are Unknown.
Etymology of Essexite and Tuff
Along with Essexite and Tuff definition, know more about the etymology of Essexite and Tuff. Etymology of Essexite and Tuff gives information about origin and formation of a particular rock. Know more about Formation of Essexite and Formation of Tuff. The etymology of Essexite is From the locality in Essex County, Massachusetts,US while that of Tuff 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 Tuff belong to Igneous Rocks. The sub-class, group and other categories of Essexite and Tuff are listed below.
For Essexite ,
- Sub-class: Durable Rock and Hard Rock
- Group: Plutonic
- Other Categories: Fine grained rock and Opaque rock
For Tuff,
- Sub-class: Durable Rock and Medium Hardness Rock
- Group: Volcanic
- Other Categories: Fine grained rock and Opaque rock