Slate and Pegmatite Definition

Definition of Slate and Pegmatite

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

History of Slate and Pegmatite

The history of Slate and Pegmatite 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.

Slate and Pegmatite Origin and Discoverer

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

Etymology of Slate and Pegmatite

Along with Slate and Pegmatite definition, know more about the etymology of Slate and Pegmatite. Etymology of Slate and Pegmatite gives information about origin and formation of a particular rock. Know more about Formation of Slate and Formation of Pegmatite. The etymology of Slate is From Old French esclate, from esclat (French éclat) while that of Pegmatite is From Old French esclate, from esclat (French éclat). The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Slate belongs to Metamorphic Rocks while Pegmatite belongs to Igneous Rocks. The sub-class, group and other categories of Slate and Pegmatite are listed below.

For Slate,

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

For Pegmatite,

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