Phonolite and Pegmatite Definition

Definition of Phonolite and Pegmatite

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

History of Phonolite and Pegmatite

The history of Phonolite 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.

Phonolite and Pegmatite Origin and Discoverer

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

Etymology of Phonolite and Pegmatite

Along with Phonolite and Pegmatite definition, know more about the etymology of Phonolite and Pegmatite. Etymology of Phonolite and Pegmatite gives information about origin and formation of a particular rock. Know more about Formation of Phonolite and Formation of Pegmatite. The etymology of Phonolite is From the Greek meaning sounding stone because of the metallic sound it produces if an unfractured plate is hit while that of Pegmatite is From the Greek meaning sounding stone because of the metallic sound it produces if an unfractured plate is hit. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Phonolite and Pegmatite belong to Igneous Rocks. The sub-class, group and other categories of Phonolite and Pegmatite are listed below.

For Phonolite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• 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