Porphyry and Nephelinite Definition

Definition of Porphyry and Nephelinite

The general Porphyry and Nephelinite 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, Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).. Along with definition of Porphyry and Nephelinite, get to know about Properties of Porphyry and Nephelinite. Get to know more information about Porphyry and Nephelinite origin and discoverer, etymology and class.

History of Porphyry and Nephelinite

The history of Porphyry and Nephelinite 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 Nephelinite Origin and Discoverer

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

Etymology of Porphyry and Nephelinite

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

For Porphyry,

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

For Nephelinite,

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