Troctolite and Rapakivi Granite Definition

Definition of Troctolite and Rapakivi Granite

The general Troctolite and Rapakivi Granite definition can be stated as: Troctolite is a mafic intrusive rock type. It consists essentially of major but variable amounts of olivine and calcic plagioclase along with minor pyroxene. It is an olivine-rich anorthosite, or a pyroxene-depleted relative of gabbro. 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 Troctolite and Rapakivi Granite, get to know about Properties of Troctolite and Rapakivi Granite. Get to know more information about Troctolite and Rapakivi Granite origin and discoverer, etymology and class.

History of Troctolite and Rapakivi Granite

The history of Troctolite 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.

Troctolite and Rapakivi Granite Origin and Discoverer

Troctolite 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 Troctolite and Rapakivi Granite. In this section, you will know about Troctolite and Rapakivi Granite Origin and Discoverer. Origin of Troctolite is Unknown whereas Origin of Rapakivi Granite is Finland, Europe. It is interesting to know the name of Troctolite and Rapakivi Granite discoverer. The Discoverer of Troctolite is Christian Leopold von Buch and the discoverer of Rapakivi Granite is Jakob Sederholm.

Etymology of Troctolite and Rapakivi Granite

Along with Troctolite and Rapakivi Granite definition, know more about the etymology of Troctolite and Rapakivi Granite. Etymology of Troctolite and Rapakivi Granite gives information about origin and formation of a particular rock. Know more about Formation of Troctolite and Formation of Rapakivi Granite. The etymology of Troctolite is From German Troklotit, from Greek trōktēs, a marine fish (taken to be trout) while that of Rapakivi Granite is From German Troklotit, from Greek trōktēs, a marine fish (taken to be trout). The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Troctolite and Rapakivi Granite belong to Igneous Rocks. The sub-class, group and other categories of Troctolite and Rapakivi Granite are listed below.

For Troctolite,

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