Chert and Porphyry Definition

Definition of Chert and Porphyry

The general Chert and Porphyry 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, Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix. Along with definition of Chert and Porphyry, get to know about Properties of Chert and Porphyry. Get to know more information about Chert and Porphyry origin and discoverer, etymology and class.

History of Chert and Porphyry

The history of Chert and Porphyry 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 Porphyry Origin and Discoverer

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

Etymology of Chert and Porphyry

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

For Chert,

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

For Porphyry,

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