Shoshonite and Variolite Definition

Definition of Shoshonite and Variolite

The general Shoshonite and Variolite 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, Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance. Along with definition of Shoshonite and Variolite, get to know about Properties of Shoshonite and Variolite. Get to know more information about Shoshonite and Variolite origin and discoverer, etymology and class.

History of Shoshonite and Variolite

The history of Shoshonite and Variolite 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 Variolite Origin and Discoverer

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

Etymology of Shoshonite and Variolite

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

• Sub-class: Durable Rock and Hard Rock
• Group: Volcanic
• Other Categories: Opaque rock