Argillite and Phonolite Definition

Definition of Argillite and Phonolite

The general Argillite and Phonolite 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, Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic. Along with definition of Argillite and Phonolite, get to know about Properties of Argillite and Phonolite. Get to know more information about Argillite and Phonolite origin and discoverer, etymology and class.

History of Argillite and Phonolite

The history of Argillite and Phonolite 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 Phonolite Origin and Discoverer

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

Etymology of Argillite and Phonolite

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

For Argillite,

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

For Phonolite,

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