Ijolite and Argillite Definition

Definition of Ijolite and Argillite

The general Ijolite and Argillite definition can be stated as: Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite. 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 Ijolite and Argillite, get to know about Properties of Ijolite and Argillite. Get to know more information about Ijolite and Argillite origin and discoverer, etymology and class.

History of Ijolite and Argillite

The history of Ijolite 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.

Ijolite and Argillite Origin and Discoverer

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

Etymology of Ijolite and Argillite

Along with Ijolite and Argillite definition, know more about the etymology of Ijolite and Argillite. Etymology of Ijolite and Argillite gives information about origin and formation of a particular rock. Know more about Formation of Ijolite and Formation of Argillite. The etymology of Ijolite is From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone while that of Argillite is From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Ijolite belongs to Igneous Rocks while Argillite belongs to Sedimentary Rocks. The sub-class, group and other categories of Ijolite and Argillite are listed below.

For Ijolite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Plutonic
• Other Categories: Coarse 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