Porphyry and Chert Definition

Definition of Porphyry and Chert

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

History of Porphyry and Chert

The history of Porphyry 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.

Porphyry and Chert Origin and Discoverer

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

Etymology of Porphyry and Chert

Along with Porphyry and Chert definition, know more about the etymology of Porphyry and Chert. Etymology of Porphyry and Chert gives information about origin and formation of a particular rock. Know more about Formation of Porphyry and Formation of Chert. The etymology of Porphyry is From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites while that of Chert is From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Porphyry belongs to Igneous Rocks while Chert belongs to Sedimentary Rocks. The sub-class, group and other categories of Porphyry and Chert are listed below.

For Porphyry,

• Sub-class: Durable Rock and Hard Rock
• Group: Plutonic
• 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