Tonalite and Tachylite Definition

Definition of Tonalite and Tachylite

The general Tonalite and Tachylite 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, Tachylite is a vitreous form of basaltic volcanic glass. This glass is formed naturally by the rapid cooling of molten basalt. Along with definition of Tonalite and Tachylite, get to know about Properties of Tonalite and Tachylite. Get to know more information about Tonalite and Tachylite origin and discoverer, etymology and class.

History of Tonalite and Tachylite

The history of Tonalite and Tachylite 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 Tachylite Origin and Discoverer

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

Etymology of Tonalite and Tachylite

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

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