Home
Compare Rocks


Tonalite and Shonkinite Definition


Shonkinite 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   
Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents   

History
  
  

Origin
Tonale, Italy   
USA   

Discoverer
Unknown   
Unknown   

Etymology
From Tonale Pass, northern Italy, + -ite1   
From the name of Shonkin Sag ranges in the Highwood Mountains of north-central Montana, US   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Not Applicable   

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

Texture >>
<< Summary

Definition of Tonalite and Shonkinite

The general Tonalite and Shonkinite 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, Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents. Along with definition of Tonalite and Shonkinite, get to know about Properties of Tonalite and Shonkinite. Get to know more information about Tonalite and Shonkinite origin and discoverer, etymology and class.

Compare Igneous Rocks

History of Tonalite and Shonkinite

The history of Tonalite and Shonkinite 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 Shonkinite Origin and Discoverer

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

Etymology of Tonalite and Shonkinite

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

For Tonalite,

For Shonkinite,

Igneous Rocks

Igneous Rocks

» More Igneous Rocks

Compare Igneous Rocks

» More Compare Igneous Rocks