Tonalite and Borolanite Definition

Definition of Tonalite and Borolanite

The general Tonalite and Borolanite 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, Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix. Along with definition of Tonalite and Borolanite, get to know about Properties of Tonalite and Borolanite. Get to know more information about Tonalite and Borolanite origin and discoverer, etymology and class.

History of Tonalite and Borolanite

The history of Tonalite and Borolanite 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 Borolanite Origin and Discoverer

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

Etymology of Tonalite and Borolanite

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

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