Shonkinite and Nephelinite Definition

Definition of Shonkinite and Nephelinite

The general Shonkinite and Nephelinite definition can be stated as: Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents. On the other hand, Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).. Along with definition of Shonkinite and Nephelinite, get to know about Properties of Shonkinite and Nephelinite. Get to know more information about Shonkinite and Nephelinite origin and discoverer, etymology and class.

History of Shonkinite and Nephelinite

The history of Shonkinite and Nephelinite 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.

Shonkinite and Nephelinite Origin and Discoverer

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

Etymology of Shonkinite and Nephelinite

Along with Shonkinite and Nephelinite definition, know more about the etymology of Shonkinite and Nephelinite. Etymology of Shonkinite and Nephelinite gives information about origin and formation of a particular rock. Know more about Formation of Shonkinite and Formation of Nephelinite. The etymology of Shonkinite is From the name of Shonkin Sag ranges in the Highwood Mountains of north-central Montana, US while that of Nephelinite is From the name of Shonkin Sag ranges in the Highwood Mountains of north-central Montana, US. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Shonkinite and Nephelinite belong to Igneous Rocks. The sub-class, group and other categories of Shonkinite and Nephelinite are listed below.

For Shonkinite,

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

For Nephelinite,

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