Arkose and Phonolite Definition

Definition of Arkose and Phonolite

The general Arkose and Phonolite definition can be stated as: Arkose is a sedimentary rock, specifically a type of sandstone containing at least 25% feldspar. On the other hand, Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic. Along with definition of Arkose and Phonolite, get to know about Properties of Arkose and Phonolite. Get to know more information about Arkose and Phonolite origin and discoverer, etymology and class.

History of Arkose and Phonolite

The history of Arkose and Phonolite 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 Phonolite Origin and Discoverer

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

Etymology of Arkose and Phonolite

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

For Arkose,

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

For Phonolite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock