Pegmatite and Ignimbrite Definition

Definition of Pegmatite and Ignimbrite

The general Pegmatite and Ignimbrite definition can be stated as: Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. On the other hand, Ignimbrite is a volcanic rock consisting mainly of pumice fragments, formed by the consolidation of material deposited by pyroclastic flows. Along with definition of Pegmatite and Ignimbrite, get to know about Properties of Pegmatite and Ignimbrite. Get to know more information about Pegmatite and Ignimbrite origin and discoverer, etymology and class.

History of Pegmatite and Ignimbrite

The history of Pegmatite and Ignimbrite 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 Ignimbrite Origin and Discoverer

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

Etymology of Pegmatite and Ignimbrite

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

For Pegmatite,

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

For Ignimbrite,

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