Rhyodacite and Tonalite Definition

Definition of Rhyodacite and Tonalite

The general Rhyodacite and Tonalite definition can be stated as: Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite. On the other hand, Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture. Along with definition of Rhyodacite and Tonalite, get to know about Properties of Rhyodacite and Tonalite. Get to know more information about Rhyodacite and Tonalite origin and discoverer, etymology and class.

History of Rhyodacite and Tonalite

The history of Rhyodacite and Tonalite 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.

Rhyodacite and Tonalite Origin and Discoverer

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

Etymology of Rhyodacite and Tonalite

Along with Rhyodacite and Tonalite definition, know more about the etymology of Rhyodacite and Tonalite. Etymology of Rhyodacite and Tonalite gives information about origin and formation of a particular rock. Know more about Formation of Rhyodacite and Formation of Tonalite. The etymology of Rhyodacite is Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite while that of Tonalite is Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Rhyodacite and Tonalite belong to Igneous Rocks. The sub-class, group and other categories of Rhyodacite and Tonalite are listed below.

For Rhyodacite,

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

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