Tonalite and Anorthosite Definition

Definition of Tonalite and Anorthosite

The general Tonalite and Anorthosite 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, Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase. Along with definition of Tonalite and Anorthosite, get to know about Properties of Tonalite and Anorthosite. Get to know more information about Tonalite and Anorthosite origin and discoverer, etymology and class.

History of Tonalite and Anorthosite

The history of Tonalite and Anorthosite 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 Anorthosite Origin and Discoverer

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

Etymology of Tonalite and Anorthosite

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

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