Anthracite and Argillite Definition

Definition of Anthracite and Argillite

The general Anthracite and Argillite 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, Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate. Along with definition of Anthracite and Argillite, get to know about Properties of Anthracite and Argillite. Get to know more information about Anthracite and Argillite origin and discoverer, etymology and class.

History of Anthracite and Argillite

The history of Anthracite and Argillite 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 Argillite Origin and Discoverer

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

Etymology of Anthracite and Argillite

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

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