Rapakivi Granite and Nepheline Syenite Definition

Definition of Rapakivi Granite and Nepheline Syenite

The general Rapakivi Granite and Nepheline Syenite 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, Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz. Along with definition of Rapakivi Granite and Nepheline Syenite, get to know about Properties of Rapakivi Granite and Nepheline Syenite. Get to know more information about Rapakivi Granite and Nepheline Syenite origin and discoverer, etymology and class.

History of Rapakivi Granite and Nepheline Syenite

The history of Rapakivi Granite and Nepheline Syenite 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 Nepheline Syenite Origin and Discoverer

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

Etymology of Rapakivi Granite and Nepheline Syenite

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

For Rapakivi Granite,

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

For Nepheline Syenite,

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