Shoshonite and Nepheline Syenite Definition

Definition of Shoshonite and Nepheline Syenite

The general Shoshonite and Nepheline Syenite 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, Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz. Along with definition of Shoshonite and Nepheline Syenite, get to know about Properties of Shoshonite and Nepheline Syenite. Get to know more information about Shoshonite and Nepheline Syenite origin and discoverer, etymology and class.

History of Shoshonite and Nepheline Syenite

The history of Shoshonite and Nepheline Syenite 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 Nepheline Syenite Origin and Discoverer

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

Etymology of Shoshonite and Nepheline Syenite

Along with Shoshonite and Nepheline Syenite definition, know more about the etymology of Shoshonite and Nepheline Syenite. Etymology of Shoshonite and Nepheline Syenite gives information about origin and formation of a particular rock. Know more about Formation of Shoshonite and Formation of Nepheline Syenite. The etymology of Shoshonite is From the place of origin called Shoshone riverin Wyoming while that of Nepheline Syenite 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 Nepheline Syenite belong to Igneous Rocks. The sub-class, group and other categories of Shoshonite and Nepheline Syenite 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 Nepheline Syenite,

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