Variolite and Shoshonite Definition

Definition of Variolite and Shoshonite

The general Variolite and Shoshonite definition can be stated as: 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. On the other hand, 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. Along with definition of Variolite and Shoshonite, get to know about Properties of Variolite and Shoshonite. Get to know more information about Variolite and Shoshonite origin and discoverer, etymology and class.

History of Variolite and Shoshonite

The history of Variolite and Shoshonite 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.

Variolite and Shoshonite Origin and Discoverer

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

Etymology of Variolite and Shoshonite

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

For Variolite,

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

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