Variolite and Greywacke Definition

Definition of Variolite and Greywacke

The general Variolite and Greywacke 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, Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay. Along with definition of Variolite and Greywacke, get to know about Properties of Variolite and Greywacke. Get to know more information about Variolite and Greywacke origin and discoverer, etymology and class.

History of Variolite and Greywacke

The history of Variolite and Greywacke 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 Greywacke Origin and Discoverer

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

Etymology of Variolite and Greywacke

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

For Variolite,

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

For Greywacke,

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