Chalk and Andesite Definition

Definition of Chalk and Andesite

The general Chalk and Andesite definition can be stated as: Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. On the other hand, Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. Along with definition of Chalk and Andesite, get to know about Properties of Chalk and Andesite. Get to know more information about Chalk and Andesite origin and discoverer, etymology and class.

History of Chalk and Andesite

The history of Chalk and Andesite 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 Andesite Origin and Discoverer

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

Etymology of Chalk and Andesite

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

For Chalk,

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

For Andesite,

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