Pegmatite and Mylonite Definition

Definition of Pegmatite and Mylonite

The general Pegmatite and Mylonite definition can be stated as: Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. On the other hand, Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism. Along with definition of Pegmatite and Mylonite, get to know about Properties of Pegmatite and Mylonite. Get to know more information about Pegmatite and Mylonite origin and discoverer, etymology and class.

History of Pegmatite and Mylonite

The history of Pegmatite and Mylonite 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 Mylonite Origin and Discoverer

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

Etymology of Pegmatite and Mylonite

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

For Pegmatite,

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

For Mylonite,

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