Tonalite and Shonkinite Definition

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.

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,

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

For Shonkinite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock