Tonalite and Essexite  Definition

Definition of Tonalite and Essexite 

The general Tonalite and Essexite  definition can be stated as: Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture. 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 Tonalite and Essexite , get to know about Properties of Tonalite and Essexite . Get to know more information about Tonalite and Essexite  origin and discoverer, etymology and class.

History of Tonalite and Essexite 

The history of Tonalite 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.

Tonalite and Essexite  Origin and Discoverer

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

Etymology of Tonalite and Essexite 

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

For Tonalite,

• Sub-class: Durable Rock and Hard 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