Argillite and Shale Definition

Definition of Argillite and Shale

The general Argillite and Shale 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, Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles. Along with definition of Argillite and Shale, get to know about Properties of Argillite and Shale. Get to know more information about Argillite and Shale origin and discoverer, etymology and class.

History of Argillite and Shale

The history of Argillite and Shale 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 Shale Origin and Discoverer

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

Etymology of Argillite and Shale

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

For Argillite,

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

For Shale,

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