Anthracite and Tonalite Definition

Definition of Anthracite and Tonalite

The general Anthracite and Tonalite definition can be stated as: Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster. 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 Anthracite and Tonalite, get to know about Properties of Anthracite and Tonalite. Get to know more information about Anthracite and Tonalite origin and discoverer, etymology and class.

History of Anthracite and Tonalite

The history of Anthracite 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.

Anthracite and Tonalite Origin and Discoverer

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

Etymology of Anthracite and Tonalite

Along with Anthracite and Tonalite definition, know more about the etymology of Anthracite and Tonalite. Etymology of Anthracite and Tonalite gives information about origin and formation of a particular rock. Know more about Formation of Anthracite and Formation of Tonalite. The etymology of Anthracite is From Greek anthrakites, from anthrax, anthrak meaning coal while that of Tonalite is From Greek anthrakites, from anthrax, anthrak meaning coal. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Anthracite belongs to Metamorphic Rocks while Tonalite belongs to Igneous Rocks. The sub-class, group and other categories of Anthracite and Tonalite are listed below.

For Anthracite,

• Sub-class: Durable Rock and Soft Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, 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