Pegmatite and Slate Definition

Definition of Pegmatite and Slate

The general Pegmatite and Slate definition can be stated as: Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. On the other hand, Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. Along with definition of Pegmatite and Slate, get to know about Properties of Pegmatite and Slate. Get to know more information about Pegmatite and Slate origin and discoverer, etymology and class.

History of Pegmatite and Slate

The history of Pegmatite and Slate 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 Slate Origin and Discoverer

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

Etymology of Pegmatite and Slate

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

For Pegmatite,

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

For Slate,

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