Pegmatite and Nephelinite Definition

Definition of Pegmatite and Nephelinite

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

History of Pegmatite and Nephelinite

The history of Pegmatite 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.

Pegmatite and Nephelinite Origin and Discoverer

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

Etymology of Pegmatite and Nephelinite

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

For Pegmatite,

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

For Nephelinite,

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