Schist and Rapakivi Granite Definition

Definition of Schist and Rapakivi Granite

The general Schist and Rapakivi Granite definition can be stated as: Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation. 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 Schist and Rapakivi Granite, get to know about Properties of Schist and Rapakivi Granite. Get to know more information about Schist and Rapakivi Granite origin and discoverer, etymology and class.

History of Schist and Rapakivi Granite

The history of Schist 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.

Schist and Rapakivi Granite Origin and Discoverer

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

Etymology of Schist and Rapakivi Granite

Along with Schist and Rapakivi Granite definition, know more about the etymology of Schist and Rapakivi Granite. Etymology of Schist and Rapakivi Granite gives information about origin and formation of a particular rock. Know more about Formation of Schist and Formation of Rapakivi Granite. The etymology of Schist is From French schiste, Greek skhistos i.e. split while that of Rapakivi Granite is From French schiste, Greek skhistos i.e. split. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Schist belongs to Metamorphic Rocks while Rapakivi Granite belongs to Igneous Rocks. The sub-class, group and other categories of Schist and Rapakivi Granite are listed below.

For Schist,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• 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