Pegmatite and Variolite Definition

Definition of Pegmatite and Variolite

The general Pegmatite and Variolite definition can be stated as: Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. On the other hand, Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance. Along with definition of Pegmatite and Variolite, get to know about Properties of Pegmatite and Variolite. Get to know more information about Pegmatite and Variolite origin and discoverer, etymology and class.

History of Pegmatite and Variolite

The history of Pegmatite and Variolite 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 Variolite Origin and Discoverer

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

Etymology of Pegmatite and Variolite

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

For Pegmatite,

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

For Variolite,

• Sub-class: Durable Rock and Hard Rock
• Group: Volcanic
• Other Categories: Opaque rock