Trondhjemite and Rapakivi Granite Definition

Definition of Trondhjemite and Rapakivi Granite

The general Trondhjemite and Rapakivi Granite definition can be stated as: Trondhjemite is a leucocratic (light-colored) intrusive igneous rock. It is a variety of tonalite in which the plagioclase is mostly in the form of oligoclase. Trondhjemites are sometimes known as plagiogranites.. On the other hand, Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase. Along with definition of Trondhjemite and Rapakivi Granite, get to know about Properties of Trondhjemite and Rapakivi Granite. Get to know more information about Trondhjemite and Rapakivi Granite origin and discoverer, etymology and class.

History of Trondhjemite and Rapakivi Granite

The history of Trondhjemite and Rapakivi Granite 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.

Trondhjemite and Rapakivi Granite Origin and Discoverer

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

Etymology of Trondhjemite and Rapakivi Granite

Along with Trondhjemite and Rapakivi Granite definition, know more about the etymology of Trondhjemite and Rapakivi Granite. Etymology of Trondhjemite and Rapakivi Granite gives information about origin and formation of a particular rock. Know more about Formation of Trondhjemite and Formation of Rapakivi Granite. The etymology of Trondhjemite is not available while that of Rapakivi Granite is not available. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Trondhjemite and Rapakivi Granite belong to Igneous Rocks. The sub-class, group and other categories of Trondhjemite and Rapakivi Granite are listed below.

For Trondhjemite,

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

For Rapakivi Granite,

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