Chert and Phonolite Definition

Definition of Chert and Phonolite

The general Chert and Phonolite 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, Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic. Along with definition of Chert and Phonolite, get to know about Properties of Chert and Phonolite. Get to know more information about Chert and Phonolite origin and discoverer, etymology and class.

History of Chert and Phonolite

The history of Chert and Phonolite 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 Phonolite Origin and Discoverer

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

Etymology of Chert and Phonolite

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

For Chert,

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

For Phonolite,

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