Nephelinite and Pegmatite Definition

Definition of Nephelinite and Pegmatite

The general Nephelinite and Pegmatite definition can be stated as: Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).. On the other hand, Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. Along with definition of Nephelinite and Pegmatite, get to know about Properties of Nephelinite and Pegmatite. Get to know more information about Nephelinite and Pegmatite origin and discoverer, etymology and class.

History of Nephelinite and Pegmatite

The history of Nephelinite and Pegmatite 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.

Nephelinite and Pegmatite Origin and Discoverer

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

Etymology of Nephelinite and Pegmatite

Along with Nephelinite and Pegmatite definition, know more about the etymology of Nephelinite and Pegmatite. Etymology of Nephelinite and Pegmatite gives information about origin and formation of a particular rock. Know more about Formation of Nephelinite and Formation of Pegmatite. The etymology of Nephelinite is from French néphéline, from Greek nephelē while that of Pegmatite is from French néphéline, from Greek nephelē. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Nephelinite and Pegmatite belong to Igneous Rocks. The sub-class, group and other categories of Nephelinite and Pegmatite are listed below.

For Nephelinite,

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

For Pegmatite,

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