Pegmatite and Hornfels Definition

Definition of Pegmatite and Hornfels

The general Pegmatite and Hornfels definition can be stated as: Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. On the other hand, Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock. Along with definition of Pegmatite and Hornfels, get to know about Properties of Pegmatite and Hornfels. Get to know more information about Pegmatite and Hornfels origin and discoverer, etymology and class.

History of Pegmatite and Hornfels

The history of Pegmatite and Hornfels 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 Hornfels Origin and Discoverer

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

Etymology of Pegmatite and Hornfels

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

For Pegmatite,

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

For Hornfels,

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