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Tonalite and Anorthosite Definition


Anorthosite and Tonalite Definition


Definition

Definition
Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture   
Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase   

History
  
  

Origin
Tonale, Italy   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From Tonale Pass, northern Italy, + -ite1   
From French anorthose plagioclase + -ite1   

Class
Igneous Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Hard Rock   
Durable Rock, Medium Hardness Rock   

Family
  
  

Group
Plutonic   
Plutonic   

Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock   
Coarse Grained Rock, Opaque Rock   

Texture >>
<< Summary

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.

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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.

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For Anorthosite,

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