Anthracite and Slate Definition

Definition of Anthracite and Slate

The general Anthracite and Slate 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, Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. Along with definition of Anthracite and Slate, get to know about Properties of Anthracite and Slate. Get to know more information about Anthracite and Slate origin and discoverer, etymology and class.

History of Anthracite and Slate

The history of Anthracite and Slate 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 Slate Origin and Discoverer

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

Etymology of Anthracite and Slate

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

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