Scoria and Variolite Definition

Definition of Scoria and Variolite

The general Scoria and Variolite definition can be stated as: Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities. On the other hand, 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. Along with definition of Scoria and Variolite, get to know about Properties of Scoria and Variolite. Get to know more information about Scoria and Variolite origin and discoverer, etymology and class.

History of Scoria and Variolite

The history of Scoria and Variolite 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.

Scoria and Variolite Origin and Discoverer

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

Etymology of Scoria and Variolite

Along with Scoria and Variolite definition, know more about the etymology of Scoria and Variolite. Etymology of Scoria and Variolite gives information about origin and formation of a particular rock. Know more about Formation of Scoria and Formation of Variolite. The etymology of Scoria is From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung while that of Variolite is From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Scoria and Variolite belong to Igneous Rocks. The sub-class, group and other categories of Scoria and Variolite are listed below.

For Scoria,

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

For Variolite,

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