Pegmatite and Andesite Definition

Definition of Pegmatite and Andesite

The general Pegmatite and Andesite definition can be stated as: Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. On the other hand, Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. Along with definition of Pegmatite and Andesite, get to know about Properties of Pegmatite and Andesite. Get to know more information about Pegmatite and Andesite origin and discoverer, etymology and class.

History of Pegmatite and Andesite

The history of Pegmatite and Andesite 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 Andesite Origin and Discoverer

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

Etymology of Pegmatite and Andesite

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

For Pegmatite,

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

For Andesite,

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