Porphyry and Comendite Definition

Definition of Porphyry and Comendite

The general Porphyry and Comendite 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, Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite. Along with definition of Porphyry and Comendite, get to know about Properties of Porphyry and Comendite. Get to know more information about Porphyry and Comendite origin and discoverer, etymology and class.

History of Porphyry and Comendite

The history of Porphyry and Comendite 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 Comendite Origin and Discoverer

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

Etymology of Porphyry and Comendite

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

For Porphyry,

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

For Comendite,

• Sub-class: Durable Rock and Hard Rock
• Group: Volcanic
• Other Categories: Medium grained rock and Opaque rock