Tonalite and Dunite Definition

Definition of Tonalite and Dunite

The general Tonalite and Dunite 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, Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine. Along with definition of Tonalite and Dunite, get to know about Properties of Tonalite and Dunite. Get to know more information about Tonalite and Dunite origin and discoverer, etymology and class.

History of Tonalite and Dunite

The history of Tonalite and Dunite 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 Dunite Origin and Discoverer

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

Etymology of Tonalite and Dunite

Along with Tonalite and Dunite definition, know more about the etymology of Tonalite and Dunite. Etymology of Tonalite and Dunite gives information about origin and formation of a particular rock. Know more about Formation of Tonalite and Formation of Dunite. The etymology of Tonalite is From Tonale Pass, northern Italy, + -ite1 while that of Dunite 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 Dunite belong to Igneous Rocks. The sub-class, group and other categories of Tonalite and Dunite 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 Dunite,

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