Shoshonite and Argillite Definition

Definition of Shoshonite and Argillite

The general Shoshonite and Argillite definition can be stated as: 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. On the other hand, 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. Along with definition of Shoshonite and Argillite, get to know about Properties of Shoshonite and Argillite. Get to know more information about Shoshonite and Argillite origin and discoverer, etymology and class.

History of Shoshonite and Argillite

The history of Shoshonite and Argillite 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.

Shoshonite and Argillite Origin and Discoverer

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

Etymology of Shoshonite and Argillite

Along with Shoshonite and Argillite definition, know more about the etymology of Shoshonite and Argillite. Etymology of Shoshonite and Argillite gives information about origin and formation of a particular rock. Know more about Formation of Shoshonite and Formation of Argillite. The etymology of Shoshonite is From the place of origin called Shoshone riverin Wyoming while that of Argillite is From the place of origin called Shoshone riverin Wyoming. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Shoshonite belongs to Igneous Rocks while Argillite belongs to Sedimentary Rocks. The sub-class, group and other categories of Shoshonite and Argillite are listed below.

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

For Argillite,

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