Variolite and Tuff Definition

Definition of Variolite and Tuff

The general Variolite and Tuff 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, Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Along with definition of Variolite and Tuff, get to know about Properties of Variolite and Tuff. Get to know more information about Variolite and Tuff origin and discoverer, etymology and class.

History of Variolite and Tuff

The history of Variolite and Tuff 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 Tuff Origin and Discoverer

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

Etymology of Variolite and Tuff

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

For Variolite,

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

For Tuff,

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