Chalk and Comendite Definition

Definition of Chalk and Comendite

The general Chalk and Comendite definition can be stated as: Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. On the other hand, Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite. Along with definition of Chalk and Comendite, get to know about Properties of Chalk and Comendite. Get to know more information about Chalk and Comendite origin and discoverer, etymology and class.

History of Chalk and Comendite

The history of Chalk and Comendite 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 Comendite Origin and Discoverer

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

Etymology of Chalk and Comendite

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

For Chalk,

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

For Comendite,

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