Shonkinite and Ijolite Definition

Definition of Shonkinite and Ijolite

The general Shonkinite and Ijolite 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, Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite. Along with definition of Shonkinite and Ijolite, get to know about Properties of Shonkinite and Ijolite. Get to know more information about Shonkinite and Ijolite origin and discoverer, etymology and class.

History of Shonkinite and Ijolite

The history of Shonkinite and Ijolite 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 Ijolite Origin and Discoverer

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

Etymology of Shonkinite and Ijolite

Along with Shonkinite and Ijolite definition, know more about the etymology of Shonkinite and Ijolite. Etymology of Shonkinite and Ijolite gives information about origin and formation of a particular rock. Know more about Formation of Shonkinite and Formation of Ijolite. The etymology of Shonkinite is From the name of Shonkin Sag ranges in the Highwood Mountains of north-central Montana, US while that of Ijolite 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 Ijolite belong to Igneous Rocks. The sub-class, group and other categories of Shonkinite and Ijolite 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 Ijolite,

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