Nephelinite and Arkose Definition

Definition of Nephelinite and Arkose

The general Nephelinite and Arkose 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, Arkose is a sedimentary rock, specifically a type of sandstone containing at least 25% feldspar. Along with definition of Nephelinite and Arkose, get to know about Properties of Nephelinite and Arkose. Get to know more information about Nephelinite and Arkose origin and discoverer, etymology and class.

History of Nephelinite and Arkose

The history of Nephelinite and Arkose 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 Arkose Origin and Discoverer

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

Etymology of Nephelinite and Arkose

Along with Nephelinite and Arkose definition, know more about the etymology of Nephelinite and Arkose. Etymology of Nephelinite and Arkose gives information about origin and formation of a particular rock. Know more about Formation of Nephelinite and Formation of Arkose. The etymology of Nephelinite is from French néphéline, from Greek nephelē while that of Arkose 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 belongs to Igneous Rocks while Arkose belongs to Sedimentary Rocks. The sub-class, group and other categories of Nephelinite and Arkose are listed below.

For Nephelinite,

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

For Arkose,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Coarse grained rock and Opaque rock