Arkose and Nepheline Syenite Definition

Definition of Arkose and Nepheline Syenite

The general Arkose and Nepheline Syenite definition can be stated as: Arkose is a sedimentary rock, specifically a type of sandstone containing at least 25% feldspar. On the other hand, Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz. Along with definition of Arkose and Nepheline Syenite, get to know about Properties of Arkose and Nepheline Syenite. Get to know more information about Arkose and Nepheline Syenite origin and discoverer, etymology and class.

History of Arkose and Nepheline Syenite

The history of Arkose 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.

Arkose and Nepheline Syenite Origin and Discoverer

Arkose 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 Arkose and Nepheline Syenite. In this section, you will know about Arkose and Nepheline Syenite Origin and Discoverer. Origin of Arkose is France whereas Origin of Nepheline Syenite is Unknown. It is interesting to know the name of Arkose and Nepheline Syenite discoverer. The Discoverer of Arkose is Alexandre Brongniart and the discoverer of Nepheline Syenite is Unknown.

Etymology of Arkose and Nepheline Syenite

Along with Arkose and Nepheline Syenite definition, know more about the etymology of Arkose and Nepheline Syenite. Etymology of Arkose and Nepheline Syenite gives information about origin and formation of a particular rock. Know more about Formation of Arkose and Formation of Nepheline Syenite. 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 Nepheline Syenite 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 Nepheline Syenite belongs to Igneous Rocks. The sub-class, group and other categories of Arkose and Nepheline Syenite are listed below.

For Arkose,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• 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