Rapakivi Granite and Pegmatite Definition

Definition of Rapakivi Granite and Pegmatite

The general Rapakivi Granite and Pegmatite definition can be stated as: Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase. On the other hand, Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. Along with definition of Rapakivi Granite and Pegmatite, get to know about Properties of Rapakivi Granite and Pegmatite. Get to know more information about Rapakivi Granite and Pegmatite origin and discoverer, etymology and class.

History of Rapakivi Granite and Pegmatite

The history of Rapakivi Granite 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.

Rapakivi Granite and Pegmatite Origin and Discoverer

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

Etymology of Rapakivi Granite and Pegmatite

Along with Rapakivi Granite and Pegmatite definition, know more about the etymology of Rapakivi Granite and Pegmatite. Etymology of Rapakivi Granite and Pegmatite gives information about origin and formation of a particular rock. Know more about Formation of Rapakivi Granite and Formation of Pegmatite. The etymology of Rapakivi Granite is From Finnish Rapakivi which stands for crumbly rock while that of Pegmatite is From Finnish Rapakivi which stands for crumbly rock. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Rapakivi Granite and Pegmatite belong to Igneous Rocks. The sub-class, group and other categories of Rapakivi Granite and Pegmatite are listed below.

For Rapakivi Granite,

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

For Pegmatite,

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