Anorthosite and Tonalite Definition

Definition of Anorthosite and Tonalite

The general Anorthosite and Tonalite definition can be stated as: Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase. On the other hand, Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture. Along with definition of Anorthosite and Tonalite, get to know about Properties of Anorthosite and Tonalite. Get to know more information about Anorthosite and Tonalite origin and discoverer, etymology and class.

History of Anorthosite and Tonalite

The history of Anorthosite and Tonalite 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.

Anorthosite and Tonalite Origin and Discoverer

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

Etymology of Anorthosite and Tonalite

Along with Anorthosite and Tonalite definition, know more about the etymology of Anorthosite and Tonalite. Etymology of Anorthosite and Tonalite gives information about origin and formation of a particular rock. Know more about Formation of Anorthosite and Formation of Tonalite. The etymology of Anorthosite is From French anorthose plagioclase + -ite1 while that of Tonalite is From French anorthose plagioclase + -ite1. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Anorthosite and Tonalite belong to Igneous Rocks. The sub-class, group and other categories of Anorthosite and Tonalite are listed below.

For Anorthosite,

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

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