Shoshonite and Ijolite Definition

Definition of Shoshonite and Ijolite

The general Shoshonite and Ijolite definition can be stated as: 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. 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 Shoshonite and Ijolite, get to know about Properties of Shoshonite and Ijolite. Get to know more information about Shoshonite and Ijolite origin and discoverer, etymology and class.

History of Shoshonite and Ijolite

The history of Shoshonite 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.

Shoshonite and Ijolite Origin and Discoverer

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

Etymology of Shoshonite and Ijolite

Along with Shoshonite and Ijolite definition, know more about the etymology of Shoshonite and Ijolite. Etymology of Shoshonite and Ijolite gives information about origin and formation of a particular rock. Know more about Formation of Shoshonite and Formation of Ijolite. The etymology of Shoshonite is From the place of origin called Shoshone riverin Wyoming while that of Ijolite is From the place of origin called Shoshone riverin Wyoming. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Shoshonite and Ijolite belong to Igneous Rocks. The sub-class, group and other categories of Shoshonite and Ijolite are listed below.

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

For Ijolite,

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