Nephelinite and Slate Definition

Definition of Nephelinite and Slate

The general Nephelinite and Slate 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, Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. Along with definition of Nephelinite and Slate, get to know about Properties of Nephelinite and Slate. Get to know more information about Nephelinite and Slate origin and discoverer, etymology and class.

History of Nephelinite and Slate

The history of Nephelinite and Slate 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 Slate Origin and Discoverer

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

Etymology of Nephelinite and Slate

Along with Nephelinite and Slate definition, know more about the etymology of Nephelinite and Slate. Etymology of Nephelinite and Slate gives information about origin and formation of a particular rock. Know more about Formation of Nephelinite and Formation of Slate. The etymology of Nephelinite is from French néphéline, from Greek nephelē while that of Slate 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 Slate belongs to Metamorphic Rocks. The sub-class, group and other categories of Nephelinite and Slate are listed below.

For Nephelinite,

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

For Slate,

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