Pegmatite and Essexite  Definition

Definition of Pegmatite and Essexite 

The general Pegmatite and Essexite  definition can be stated as: Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. 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 Pegmatite and Essexite , get to know about Properties of Pegmatite and Essexite . Get to know more information about Pegmatite and Essexite  origin and discoverer, etymology and class.

History of Pegmatite and Essexite 

The history of Pegmatite 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.

Pegmatite and Essexite  Origin and Discoverer

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

Etymology of Pegmatite and Essexite 

Along with Pegmatite and Essexite  definition, know more about the etymology of Pegmatite and Essexite . Etymology of Pegmatite and Essexite  gives information about origin and formation of a particular rock. Know more about Formation of Pegmatite and Formation of Essexite . The etymology of Pegmatite is From Greek pegma, pegmat which means- thing joined together + -ite while that of Essexite  is From Greek pegma, pegmat which means- thing joined together + -ite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Pegmatite and Essexite  belong to Igneous Rocks. The sub-class, group and other categories of Pegmatite and Essexite  are listed below.

For Pegmatite,

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

For Essexite ,

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