Nephelinite and Felsite Definition

Definition of Nephelinite and Felsite

The general Nephelinite and Felsite 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, Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition. Along with definition of Nephelinite and Felsite, get to know about Properties of Nephelinite and Felsite. Get to know more information about Nephelinite and Felsite origin and discoverer, etymology and class.

History of Nephelinite and Felsite

The history of Nephelinite and Felsite 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 Felsite Origin and Discoverer

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

Etymology of Nephelinite and Felsite

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

For Nephelinite,

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

For Felsite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• Other Categories: Fine grained rock and Opaque rock