Chalk and Hornfels Definition

Definition of Chalk and Hornfels

The general Chalk and Hornfels definition can be stated as: Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. On the other hand, Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock. Along with definition of Chalk and Hornfels, get to know about Properties of Chalk and Hornfels. Get to know more information about Chalk and Hornfels origin and discoverer, etymology and class.

History of Chalk and Hornfels

The history of Chalk and Hornfels 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 Hornfels Origin and Discoverer

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

Etymology of Chalk and Hornfels

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

For Chalk,

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

For Hornfels,

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