Rapakivi Granite and Tonalite Definition

Definition of Rapakivi Granite and Tonalite

The general Rapakivi Granite and Tonalite 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, Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture. Along with definition of Rapakivi Granite and Tonalite, get to know about Properties of Rapakivi Granite and Tonalite. Get to know more information about Rapakivi Granite and Tonalite origin and discoverer, etymology and class.

History of Rapakivi Granite and Tonalite

The history of Rapakivi Granite and Tonalite 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 Tonalite Origin and Discoverer

Rapakivi Granite and Tonalite 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 Tonalite. In this section, you will know about Rapakivi Granite and Tonalite Origin and Discoverer. Origin of Rapakivi Granite is Finland, Europe whereas Origin of Tonalite is Tonale, Italy. It is interesting to know the name of Rapakivi Granite and Tonalite discoverer. The Discoverer of Rapakivi Granite is Jakob Sederholm and the discoverer of Tonalite is Unknown.

Etymology of Rapakivi Granite and Tonalite

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

For Rapakivi Granite,

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

For Tonalite,

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