Tonalite and Troctolite Definition

Definition of Tonalite and Troctolite

The general Tonalite and Troctolite 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, Troctolite is a mafic intrusive rock type. It consists essentially of major but variable amounts of olivine and calcic plagioclase along with minor pyroxene. It is an olivine-rich anorthosite, or a pyroxene-depleted relative of gabbro. Along with definition of Tonalite and Troctolite, get to know about Properties of Tonalite and Troctolite. Get to know more information about Tonalite and Troctolite origin and discoverer, etymology and class.

History of Tonalite and Troctolite

The history of Tonalite and Troctolite 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 Troctolite Origin and Discoverer

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

Etymology of Tonalite and Troctolite

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

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