Chert and Tonalite Definition

Definition of Chert and Tonalite

The general Chert and Tonalite definition can be stated as: Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture. 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 Chert and Tonalite, get to know about Properties of Chert and Tonalite. Get to know more information about Chert and Tonalite origin and discoverer, etymology and class.

History of Chert and Tonalite

The history of Chert 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.

Chert and Tonalite Origin and Discoverer

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

Etymology of Chert and Tonalite

Along with Chert and Tonalite definition, know more about the etymology of Chert and Tonalite. Etymology of Chert and Tonalite gives information about origin and formation of a particular rock. Know more about Formation of Chert and Formation of Tonalite. The etymology of Chert is From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use while that of Tonalite is From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Chert belongs to Sedimentary Rocks while Tonalite belongs to Igneous Rocks. The sub-class, group and other categories of Chert and Tonalite are listed below.

For Chert,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• 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