Argillite and Shoshonite Definition

Definition of Argillite and Shoshonite

The general Argillite and Shoshonite 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, Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass. Along with definition of Argillite and Shoshonite, get to know about Properties of Argillite and Shoshonite. Get to know more information about Argillite and Shoshonite origin and discoverer, etymology and class.

History of Argillite and Shoshonite

The history of Argillite and Shoshonite 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 Shoshonite Origin and Discoverer

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

Etymology of Argillite and Shoshonite

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

For Argillite,

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

For Shoshonite,

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