Nephelinite and Argillite Definition

Definition of Nephelinite and Argillite

The general Nephelinite and Argillite definition can be stated as: Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety 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 Nephelinite and Argillite, get to know about Properties of Nephelinite and Argillite. Get to know more information about Nephelinite and Argillite origin and discoverer, etymology and class.

History of Nephelinite and Argillite

The history of Nephelinite 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.

Nephelinite and Argillite Origin and Discoverer

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

Etymology of Nephelinite and Argillite

Along with Nephelinite and Argillite definition, know more about the etymology of Nephelinite and Argillite. Etymology of Nephelinite and Argillite gives information about origin and formation of a particular rock. Know more about Formation of Nephelinite and Formation of Argillite. The etymology of Nephelinite is from French néphéline, from Greek nephelē while that of Argillite is from French néphéline, from Greek nephelē. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Nephelinite belongs to Igneous Rocks while Argillite belongs to Sedimentary Rocks. The sub-class, group and other categories of Nephelinite and Argillite are listed below.

For Nephelinite,

• Sub-class: Durable Rock and Hard Rock
• Group: Plutonic
• Other Categories: Fine 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