Chert and Variolite Definition

Definition of Chert and Variolite

The general Chert and Variolite definition can be stated as: Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture. 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 Chert and Variolite, get to know about Properties of Chert and Variolite. Get to know more information about Chert and Variolite origin and discoverer, etymology and class.

History of Chert and Variolite

The history of Chert 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.

Chert and Variolite Origin and Discoverer

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

Etymology of Chert and Variolite

Along with Chert and Variolite definition, know more about the etymology of Chert and Variolite. Etymology of Chert and Variolite gives information about origin and formation of a particular rock. Know more about Formation of Chert and Formation of Variolite. The etymology of Chert is From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use while that of Variolite is From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Chert belongs to Sedimentary Rocks while Variolite belongs to Igneous Rocks. The sub-class, group and other categories of Chert and Variolite are listed below.

For Chert,

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

For Variolite,

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