Tonalite and Trachyte Definition

Definition of Tonalite and Trachyte

The general Tonalite and Trachyte 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, Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar. Along with definition of Tonalite and Trachyte, get to know about Properties of Tonalite and Trachyte. Get to know more information about Tonalite and Trachyte origin and discoverer, etymology and class.

History of Tonalite and Trachyte

The history of Tonalite and Trachyte 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 Trachyte Origin and Discoverer

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

Etymology of Tonalite and Trachyte

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

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