Variolite and Gritstone Definition

Definition of Variolite and Gritstone

The general Variolite and Gritstone 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, Gritstone or grit is a hard, coarse-grained, siliceous sandstone. Along with definition of Variolite and Gritstone, get to know about Properties of Variolite and Gritstone. Get to know more information about Variolite and Gritstone origin and discoverer, etymology and class.

History of Variolite and Gritstone

The history of Variolite and Gritstone 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 Gritstone Origin and Discoverer

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

Etymology of Variolite and Gritstone

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

For Variolite,

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

For Gritstone,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Coarse grained rock and Opaque rock