Andesite and Pegmatite Definition

Definition of Andesite and Pegmatite

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

History of Andesite and Pegmatite

The history of Andesite 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.

Andesite and Pegmatite Origin and Discoverer

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

Etymology of Andesite and Pegmatite

Along with Andesite and Pegmatite definition, know more about the etymology of Andesite and Pegmatite. Etymology of Andesite and Pegmatite gives information about origin and formation of a particular rock. Know more about Formation of Andesite and Formation of Pegmatite. The etymology of Andesite is From Andes mountains, where it is found in abundance while that of Pegmatite is From Andes mountains, where it is found in abundance. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Andesite and Pegmatite belong to Igneous Rocks. The sub-class, group and other categories of Andesite and Pegmatite are listed below.

For Andesite,

• Sub-class: Durable Rock and Hard Rock
• Group: Volcanic
• 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