Nephelinite and Phonolite Definition

Definition of Nephelinite and Phonolite

The general Nephelinite and Phonolite 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, Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic. Along with definition of Nephelinite and Phonolite, get to know about Properties of Nephelinite and Phonolite. Get to know more information about Nephelinite and Phonolite origin and discoverer, etymology and class.

History of Nephelinite and Phonolite

The history of Nephelinite 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.

Nephelinite and Phonolite Origin and Discoverer

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

Etymology of Nephelinite and Phonolite

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

For Nephelinite,

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