Tonalite and Rhyolite Definition

Definition of Tonalite and Rhyolite

The general Tonalite and Rhyolite 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, Rhyolite is a fine-grained igneous rock which is rich in silica. Along with definition of Tonalite and Rhyolite, get to know about Properties of Tonalite and Rhyolite. Get to know more information about Tonalite and Rhyolite origin and discoverer, etymology and class.

History of Tonalite and Rhyolite

The history of Tonalite and Rhyolite 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 Rhyolite Origin and Discoverer

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

Etymology of Tonalite and Rhyolite

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

• Sub-class: Durable Rock and Hard Rock
• Group: Volcanic
• Other Categories: Coarse grained rock and Opaque rock