Nephelinite and Norite Definition

Definition of Nephelinite and Norite

The general Nephelinite and Norite definition can be stated as: Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).. On the other hand, Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine. Along with definition of Nephelinite and Norite, get to know about Properties of Nephelinite and Norite. Get to know more information about Nephelinite and Norite origin and discoverer, etymology and class.

History of Nephelinite and Norite

The history of Nephelinite and Norite 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.

Nephelinite and Norite Origin and Discoverer

Nephelinite and Norite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Nephelinite and Norite. In this section, you will know about Nephelinite and Norite Origin and Discoverer. Origin of Nephelinite is Brazil whereas Origin of Norite is Norway. It is interesting to know the name of Nephelinite and Norite discoverer. The discoverer of Nephelinite and Norite are Unknown.

Etymology of Nephelinite and Norite

Along with Nephelinite and Norite definition, know more about the etymology of Nephelinite and Norite. Etymology of Nephelinite and Norite gives information about origin and formation of a particular rock. Know more about Formation of Nephelinite and Formation of Norite. The etymology of Nephelinite is from French néphéline, from Greek nephelē while that of Norite is from French néphéline, from Greek nephelē. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Nephelinite and Norite belong to Igneous Rocks. The sub-class, group and other categories of Nephelinite and Norite are listed below.

For Nephelinite,

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

For Norite,

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