Argillite and Tachylite Definition

Definition of Argillite and Tachylite

The general Argillite and Tachylite 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, Tachylite is a vitreous form of basaltic volcanic glass. This glass is formed naturally by the rapid cooling of molten basalt. Along with definition of Argillite and Tachylite, get to know about Properties of Argillite and Tachylite. Get to know more information about Argillite and Tachylite origin and discoverer, etymology and class.

History of Argillite and Tachylite

The history of Argillite and Tachylite 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 Tachylite Origin and Discoverer

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

Etymology of Argillite and Tachylite

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

For Argillite,

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

For Tachylite,

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