Pegmatite and Schist Definition

Definition of Pegmatite and Schist

The general Pegmatite and Schist definition can be stated as: Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. On the other hand, Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation. Along with definition of Pegmatite and Schist, get to know about Properties of Pegmatite and Schist. Get to know more information about Pegmatite and Schist origin and discoverer, etymology and class.

History of Pegmatite and Schist

The history of Pegmatite and Schist 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 Schist Origin and Discoverer

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

Etymology of Pegmatite and Schist

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

For Pegmatite,

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

For Schist,

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