Variolite and Chalk Definition

Definition of Variolite and Chalk

The general Variolite and Chalk 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, Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. Along with definition of Variolite and Chalk, get to know about Properties of Variolite and Chalk. Get to know more information about Variolite and Chalk origin and discoverer, etymology and class.

History of Variolite and Chalk

The history of Variolite and Chalk 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 Chalk Origin and Discoverer

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

Etymology of Variolite and Chalk

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

For Variolite,

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

For Chalk,

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