Phonolite and Porphyry Definition

Definition of Phonolite and Porphyry

The general Phonolite and Porphyry 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, 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 Phonolite and Porphyry, get to know about Properties of Phonolite and Porphyry. Get to know more information about Phonolite and Porphyry origin and discoverer, etymology and class.

History of Phonolite and Porphyry

The history of Phonolite 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.

Phonolite and Porphyry Origin and Discoverer

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

Etymology of Phonolite and Porphyry

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

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