Pegmatite and Phonolite Definition

Definition of Pegmatite and Phonolite

The general Pegmatite and Phonolite definition can be stated as: Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. On the other hand, Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic. Along with definition of Pegmatite and Phonolite, get to know about Properties of Pegmatite and Phonolite. Get to know more information about Pegmatite and Phonolite origin and discoverer, etymology and class.

History of Pegmatite and Phonolite

The history of Pegmatite and Phonolite 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 Phonolite Origin and Discoverer

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

Etymology of Pegmatite and Phonolite

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

For Pegmatite,

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

For Phonolite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock