Pegmatite and Dacite Definition

Definition of Pegmatite and Dacite

The general Pegmatite and Dacite definition can be stated as: Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. On the other hand, Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite. Along with definition of Pegmatite and Dacite, get to know about Properties of Pegmatite and Dacite. Get to know more information about Pegmatite and Dacite origin and discoverer, etymology and class.

History of Pegmatite and Dacite

The history of Pegmatite and Dacite 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 Dacite Origin and Discoverer

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

Etymology of Pegmatite and Dacite

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

For Pegmatite,

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

For Dacite,

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