Argillite and Essexite  Definition

Definition of Argillite and Essexite 

The general Argillite and Essexite  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, Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock. Along with definition of Argillite and Essexite , get to know about Properties of Argillite and Essexite . Get to know more information about Argillite and Essexite  origin and discoverer, etymology and class.

History of Argillite and Essexite 

The history of Argillite and Essexite  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 Essexite  Origin and Discoverer

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

Etymology of Argillite and Essexite 

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

For Argillite,

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

For Essexite ,

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