Chalk and Argillite Definition

Definition of Chalk and Argillite

The general Chalk and Argillite definition can be stated as: Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. On the other hand, Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate. Along with definition of Chalk and Argillite, get to know about Properties of Chalk and Argillite. Get to know more information about Chalk and Argillite origin and discoverer, etymology and class.

History of Chalk and Argillite

The history of Chalk and Argillite 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 Argillite Origin and Discoverer

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

Etymology of Chalk and Argillite

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

For Chalk,

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

For Argillite,

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