Anthracite and Hornfels Definition

Definition of Anthracite and Hornfels

The general Anthracite and Hornfels 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, Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock. Along with definition of Anthracite and Hornfels, get to know about Properties of Anthracite and Hornfels. Get to know more information about Anthracite and Hornfels origin and discoverer, etymology and class.

History of Anthracite and Hornfels

The history of Anthracite and Hornfels 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 Hornfels Origin and Discoverer

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

Etymology of Anthracite and Hornfels

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

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