Variolite and Hornfels Definition

Definition of Variolite and Hornfels

The general Variolite and Hornfels 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, Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock. Along with definition of Variolite and Hornfels, get to know about Properties of Variolite and Hornfels. Get to know more information about Variolite and Hornfels origin and discoverer, etymology and class.

History of Variolite and Hornfels

The history of Variolite and Hornfels 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 Hornfels Origin and Discoverer

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

Etymology of Variolite and Hornfels

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

For Variolite,

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

For Hornfels,

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