Phonolite and Chert Definition

Definition of Phonolite and Chert

The general Phonolite and Chert definition can be stated as: Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic. On the other hand, Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture. Along with definition of Phonolite and Chert, get to know about Properties of Phonolite and Chert. Get to know more information about Phonolite and Chert origin and discoverer, etymology and class.

History of Phonolite and Chert

The history of Phonolite and Chert 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.

Phonolite and Chert Origin and Discoverer

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

Etymology of Phonolite and Chert

Along with Phonolite and Chert definition, know more about the etymology of Phonolite and Chert. Etymology of Phonolite and Chert gives information about origin and formation of a particular rock. Know more about Formation of Phonolite and Formation of Chert. The etymology of Phonolite is From the Greek meaning sounding stone because of the metallic sound it produces if an unfractured plate is hit while that of Chert is From the Greek meaning sounding stone because of the metallic sound it produces if an unfractured plate is hit. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Phonolite belongs to Igneous Rocks while Chert belongs to Sedimentary Rocks. The sub-class, group and other categories of Phonolite and Chert are listed below.

For Phonolite,

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

For Chert,

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