Porphyry and Essexite  Definition

Definition of Porphyry and Essexite 

The general Porphyry and Essexite  definition can be stated as: Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix. 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 Porphyry and Essexite , get to know about Properties of Porphyry and Essexite . Get to know more information about Porphyry and Essexite  origin and discoverer, etymology and class.

History of Porphyry and Essexite 

The history of Porphyry 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.

Porphyry and Essexite  Origin and Discoverer

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

Etymology of Porphyry and Essexite 

Along with Porphyry and Essexite  definition, know more about the etymology of Porphyry and Essexite . Etymology of Porphyry and Essexite  gives information about origin and formation of a particular rock. Know more about Formation of Porphyry and Formation of Essexite . The etymology of Porphyry is From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites while that of Essexite  is From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Porphyry and Essexite  belong to Igneous Rocks. The sub-class, group and other categories of Porphyry and Essexite  are listed below.

For Porphyry,

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

For Essexite ,

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