Dacite and Tonalite Definition

Definition of Dacite and Tonalite

The general Dacite and Tonalite definition can be stated as: Dacite is a volcanic igneous rock which is rintermediate in composition between andesite 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 Dacite and Tonalite, get to know about Properties of Dacite and Tonalite. Get to know more information about Dacite and Tonalite origin and discoverer, etymology and class.

History of Dacite and Tonalite

The history of Dacite 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.

Dacite and Tonalite Origin and Discoverer

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

Etymology of Dacite and Tonalite

Along with Dacite and Tonalite definition, know more about the etymology of Dacite and Tonalite. Etymology of Dacite and Tonalite gives information about origin and formation of a particular rock. Know more about Formation of Dacite and Formation of Tonalite. The etymology of Dacite is From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described while that of Tonalite is From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Dacite and Tonalite belong to Igneous Rocks. The sub-class, group and other categories of Dacite and Tonalite are listed below.

For Dacite,

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