Anthracite and Trachyte Definition

Definition of Anthracite and Trachyte

The general Anthracite and Trachyte 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, Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar. Along with definition of Anthracite and Trachyte, get to know about Properties of Anthracite and Trachyte. Get to know more information about Anthracite and Trachyte origin and discoverer, etymology and class.

History of Anthracite and Trachyte

The history of Anthracite and Trachyte 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 Trachyte Origin and Discoverer

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

Etymology of Anthracite and Trachyte

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

For Anthracite,

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

For Trachyte,

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