Basalt and Variolite Definition

Definition of Basalt and Variolite

The general Basalt and Variolite definition can be stated as: Basalt is a common extrusive igneous rock formed by the rapid cooling of basaltic lava exposed at or very near the surface of Earth. 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 Basalt and Variolite, get to know about Properties of Basalt and Variolite. Get to know more information about Basalt and Variolite origin and discoverer, etymology and class.

History of Basalt and Variolite

The history of Basalt 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.

Basalt and Variolite Origin and Discoverer

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

Etymology of Basalt and Variolite

Along with Basalt and Variolite definition, know more about the etymology of Basalt and Variolite. Etymology of Basalt and Variolite gives information about origin and formation of a particular rock. Know more about Formation of Basalt and Formation of Variolite. The etymology of Basalt is From Late Latin Basaltes (variant of basanites ), very hard stone, which was imported from Ancient Greek Basanites while that of Variolite is From Late Latin Basaltes (variant of basanites ), very hard stone, which was imported from Ancient Greek Basanites. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Basalt and Variolite belong to Igneous Rocks. The sub-class, group and other categories of Basalt and Variolite are listed below.

For Basalt,

• 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