Felsite and Tonalite Definition

Definition of Felsite and Tonalite

The general Felsite and Tonalite definition can be stated as: Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition. 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 Felsite and Tonalite, get to know about Properties of Felsite and Tonalite. Get to know more information about Felsite and Tonalite origin and discoverer, etymology and class.

History of Felsite and Tonalite

The history of Felsite 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.

Felsite and Tonalite Origin and Discoverer

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

Etymology of Felsite and Tonalite

Along with Felsite and Tonalite definition, know more about the etymology of Felsite and Tonalite. Etymology of Felsite and Tonalite gives information about origin and formation of a particular rock. Know more about Formation of Felsite and Formation of Tonalite. The etymology of Felsite is From English feldspar and -ite while that of Tonalite is From English feldspar and -ite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Felsite and Tonalite belong to Igneous Rocks. The sub-class, group and other categories of Felsite and Tonalite are listed below.

For Felsite,

• 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