Argillite and Coquina Definition

Definition of Argillite and Coquina

The general Argillite and Coquina 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, Coquina is a sedimentary rock that is composed either wholly or almost entirely of the transported, abraded, and mechanically-sorted fragments of the shells of molluscs, trilobites, brachiopods, or other invertebrates. Along with definition of Argillite and Coquina, get to know about Properties of Argillite and Coquina. Get to know more information about Argillite and Coquina origin and discoverer, etymology and class.

History of Argillite and Coquina

The history of Argillite and Coquina 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 Coquina Origin and Discoverer

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

Etymology of Argillite and Coquina

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

For Argillite,

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

For Coquina,

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