Tonalite and Ijolite Definition

Definition of Tonalite and Ijolite

The general Tonalite and Ijolite 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, Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite. Along with definition of Tonalite and Ijolite, get to know about Properties of Tonalite and Ijolite. Get to know more information about Tonalite and Ijolite origin and discoverer, etymology and class.

History of Tonalite and Ijolite

The history of Tonalite and Ijolite 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 Ijolite Origin and Discoverer

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

Etymology of Tonalite and Ijolite

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

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