Basalt and Tonalite Definition

Definition of Basalt and Tonalite

The general Basalt and Tonalite definition can be stated as: Basalt is a common extrusive igneous rock formed by the rapid cooling of basaltic lava exposed at or very near the surface of Earth. 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 Basalt and Tonalite, get to know about Properties of Basalt and Tonalite. Get to know more information about Basalt and Tonalite origin and discoverer, etymology and class.

History of Basalt and Tonalite

The history of Basalt 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.

Basalt and Tonalite Origin and Discoverer

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

Etymology of Basalt and Tonalite

Along with Basalt and Tonalite definition, know more about the etymology of Basalt and Tonalite. Etymology of Basalt and Tonalite gives information about origin and formation of a particular rock. Know more about Formation of Basalt and Formation of Tonalite. The etymology of Basalt is From Late Latin Basaltes (variant of basanites ), very hard stone, which was imported from Ancient Greek Basanites while that of Tonalite is From Late Latin Basaltes (variant of basanites ), very hard stone, which was imported from Ancient Greek Basanites. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Basalt and Tonalite belong to Igneous Rocks. The sub-class, group and other categories of Basalt and Tonalite are listed below.

For Basalt,

• 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