Pegmatite and Rhyodacite Definition

Definition of Pegmatite and Rhyodacite

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

History of Pegmatite and Rhyodacite

The history of Pegmatite and Rhyodacite 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 Rhyodacite Origin and Discoverer

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

Etymology of Pegmatite and Rhyodacite

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

For Pegmatite,

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

For Rhyodacite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• Other Categories: Fine grained rock and Opaque rock