Variolite and Slate Definition

Definition of Variolite and Slate

The general Variolite and Slate 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, Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. Along with definition of Variolite and Slate, get to know about Properties of Variolite and Slate. Get to know more information about Variolite and Slate origin and discoverer, etymology and class.

History of Variolite and Slate

The history of Variolite and Slate 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 Slate Origin and Discoverer

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

Etymology of Variolite and Slate

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

For Variolite,

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

For Slate,

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