Pegmatite and Rhyolite Definition

Definition of Pegmatite and Rhyolite

The general Pegmatite and Rhyolite definition can be stated as: Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. On the other hand, Rhyolite is a fine-grained igneous rock which is rich in silica. Along with definition of Pegmatite and Rhyolite, get to know about Properties of Pegmatite and Rhyolite. Get to know more information about Pegmatite and Rhyolite origin and discoverer, etymology and class.

History of Pegmatite and Rhyolite

The history of Pegmatite and Rhyolite 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 Rhyolite Origin and Discoverer

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

Etymology of Pegmatite and Rhyolite

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

For Pegmatite,

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

For Rhyolite,

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