Chalk and Tuff Definition

Definition of Chalk and Tuff

The general Chalk and Tuff definition can be stated as: Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. On the other hand, Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Along with definition of Chalk and Tuff, get to know about Properties of Chalk and Tuff. Get to know more information about Chalk and Tuff origin and discoverer, etymology and class.

History of Chalk and Tuff

The history of Chalk and Tuff 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 Tuff Origin and Discoverer

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

Etymology of Chalk and Tuff

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

For Chalk,

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

For Tuff,

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