Argillite and Anthracite Definition

Definition of Argillite and Anthracite

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

History of Argillite and Anthracite

The history of Argillite and Anthracite 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.

Argillite and Anthracite Origin and Discoverer

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

Etymology of Argillite and Anthracite

Along with Argillite and Anthracite definition, know more about the etymology of Argillite and Anthracite. Etymology of Argillite and Anthracite gives information about origin and formation of a particular rock. Know more about Formation of Argillite and Formation of Anthracite. The etymology of Argillite is From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite while that of Anthracite is From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Argillite belongs to Sedimentary Rocks while Anthracite belongs to Metamorphic Rocks. The sub-class, group and other categories of Argillite and Anthracite are listed below.

For Argillite,

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

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