Chert and Andesite Definition

Definition of Chert and Andesite

The general Chert and Andesite definition can be stated as: Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture. 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 Chert and Andesite, get to know about Properties of Chert and Andesite. Get to know more information about Chert and Andesite origin and discoverer, etymology and class.

History of Chert and Andesite

The history of Chert 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.

Chert and Andesite Origin and Discoverer

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

Etymology of Chert and Andesite

Along with Chert and Andesite definition, know more about the etymology of Chert and Andesite. Etymology of Chert and Andesite gives information about origin and formation of a particular rock. Know more about Formation of Chert and Formation of Andesite. The etymology of Chert is From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use while that of Andesite is From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Chert belongs to Sedimentary Rocks while Andesite belongs to Igneous Rocks. The sub-class, group and other categories of Chert and Andesite are listed below.

For Chert,

• Sub-class: Durable Rock and Hard 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