Chalk and Scoria Definition

Definition of Chalk and Scoria

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

History of Chalk and Scoria

The history of Chalk and Scoria 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 Scoria Origin and Discoverer

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

Etymology of Chalk and Scoria

Along with Chalk and Scoria definition, know more about the etymology of Chalk and Scoria. Etymology of Chalk and Scoria gives information about origin and formation of a particular rock. Know more about Formation of Chalk and Formation of Scoria. 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 Scoria 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 Scoria belongs to Igneous Rocks. The sub-class, group and other categories of Chalk and Scoria are listed below.

For Chalk,

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

For Scoria,

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