Chalk and Basalt Definition

Definition of Chalk and Basalt

The general Chalk and Basalt definition can be stated as: Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. On the other hand, Basalt is a common extrusive igneous rock formed by the rapid cooling of basaltic lava exposed at or very near the surface of Earth. Along with definition of Chalk and Basalt, get to know about Properties of Chalk and Basalt. Get to know more information about Chalk and Basalt origin and discoverer, etymology and class.

History of Chalk and Basalt

The history of Chalk and Basalt 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.

Chalk and Basalt Origin and Discoverer

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

Etymology of Chalk and Basalt

Along with Chalk and Basalt definition, know more about the etymology of Chalk and Basalt. Etymology of Chalk and Basalt gives information about origin and formation of a particular rock. Know more about Formation of Chalk and Formation of Basalt. The etymology of Chalk is From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone while that of Basalt is From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Chalk belongs to Sedimentary Rocks while Basalt belongs to Igneous Rocks. The sub-class, group and other categories of Chalk and Basalt are listed below.

For Chalk,

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

For Basalt,

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