Argillite and Foidolite Definition

Definition of Argillite and Foidolite

The general Argillite and Foidolite 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, Foidolite is a rare type of coarse-grained intrusive igneous rock with a feldspathoid mineral content greater than 60%. Along with definition of Argillite and Foidolite, get to know about Properties of Argillite and Foidolite. Get to know more information about Argillite and Foidolite origin and discoverer, etymology and class.

History of Argillite and Foidolite

The history of Argillite and Foidolite 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 Foidolite Origin and Discoverer

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

Etymology of Argillite and Foidolite

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

For Argillite,

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

For Foidolite,

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