Nephelinite and Shoshonite Definition

Definition of Nephelinite and Shoshonite

The general Nephelinite and Shoshonite 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, Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass. Along with definition of Nephelinite and Shoshonite, get to know about Properties of Nephelinite and Shoshonite. Get to know more information about Nephelinite and Shoshonite origin and discoverer, etymology and class.

History of Nephelinite and Shoshonite

The history of Nephelinite and Shoshonite 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 Shoshonite Origin and Discoverer

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

Etymology of Nephelinite and Shoshonite

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

For Nephelinite,

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

For Shoshonite,

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