Tonalite and Nephelinite Definition

Definition of Tonalite and Nephelinite

The general Tonalite and Nephelinite definition can be stated as: Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture. 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 Tonalite and Nephelinite, get to know about Properties of Tonalite and Nephelinite. Get to know more information about Tonalite and Nephelinite origin and discoverer, etymology and class.

History of Tonalite and Nephelinite

The history of Tonalite 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.

Tonalite and Nephelinite Origin and Discoverer

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

Etymology of Tonalite and Nephelinite

Along with Tonalite and Nephelinite definition, know more about the etymology of Tonalite and Nephelinite. Etymology of Tonalite and Nephelinite gives information about origin and formation of a particular rock. Know more about Formation of Tonalite and Formation of Nephelinite. The etymology of Tonalite is From Tonale Pass, northern Italy, + -ite1 while that of Nephelinite is From Tonale Pass, northern Italy, + -ite1. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Tonalite and Nephelinite belong to Igneous Rocks. The sub-class, group and other categories of Tonalite and Nephelinite are listed below.

For Tonalite,

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

For Nephelinite,

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