Arkose and Nephelinite Definition

Definition of Arkose and Nephelinite

The general Arkose and Nephelinite definition can be stated as: Arkose is a sedimentary rock, specifically a type of sandstone containing at least 25% feldspar. On the other hand, Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).. Along with definition of Arkose and Nephelinite, get to know about Properties of Arkose and Nephelinite. Get to know more information about Arkose and Nephelinite origin and discoverer, etymology and class.

History of Arkose and Nephelinite

The history of Arkose and Nephelinite 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.

Arkose and Nephelinite Origin and Discoverer

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

Etymology of Arkose and Nephelinite

Along with Arkose and Nephelinite definition, know more about the etymology of Arkose and Nephelinite. Etymology of Arkose and Nephelinite gives information about origin and formation of a particular rock. Know more about Formation of Arkose and Formation of Nephelinite. The etymology of Arkose is From Auvergne region of France used by a French geologist Alexandre Brongniart in 1826 who applied this term to some feldspathic sandstones while that of Nephelinite is From Auvergne region of France used by a French geologist Alexandre Brongniart in 1826 who applied this term to some feldspathic sandstones. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Arkose belongs to Sedimentary Rocks while Nephelinite belongs to Igneous Rocks. The sub-class, group and other categories of Arkose and Nephelinite are listed below.

For Arkose,

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

For Nephelinite,

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