Nepheline Syenite and Rapakivi Granite Definition

Definition of Nepheline Syenite and Rapakivi Granite

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

History of Nepheline Syenite and Rapakivi Granite

The history of Nepheline Syenite 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.

Nepheline Syenite and Rapakivi Granite Origin and Discoverer

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

Etymology of Nepheline Syenite and Rapakivi Granite

Along with Nepheline Syenite and Rapakivi Granite definition, know more about the etymology of Nepheline Syenite and Rapakivi Granite. Etymology of Nepheline Syenite and Rapakivi Granite gives information about origin and formation of a particular rock. Know more about Formation of Nepheline Syenite and Formation of Rapakivi Granite. The etymology of Nepheline Syenite is From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China while that of Rapakivi Granite is From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Nepheline Syenite and Rapakivi Granite belong to Igneous Rocks. The sub-class, group and other categories of Nepheline Syenite and Rapakivi Granite are listed below.

For Nepheline Syenite,

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