Porphyry and Granite Definition

Definition of Porphyry and Granite

The general Porphyry and Granite 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, Granite is a very hard, granular, crystalline igneous rock which consists mainly of quartz, mica, and feldspar and is often used as building stone. Along with definition of Porphyry and Granite, get to know about Properties of Porphyry and Granite. Get to know more information about Porphyry and Granite origin and discoverer, etymology and class.

History of Porphyry and Granite

The history of Porphyry and Granite 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 Granite Origin and Discoverer

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

Etymology of Porphyry and Granite

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

For Porphyry,

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

For Granite,

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