Amphibolite and Porphyry Definition

Definition of Amphibolite and Porphyry

The general Amphibolite and Porphyry definition can be stated as: Amphibolite can be defined as a granular metamorphic rock which mainly consist of hornblende and plagioclase. 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 Amphibolite and Porphyry, get to know about Properties of Amphibolite and Porphyry. Get to know more information about Amphibolite and Porphyry origin and discoverer, etymology and class.

History of Amphibolite and Porphyry

The history of Amphibolite 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.

Amphibolite and Porphyry Origin and Discoverer

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

Etymology of Amphibolite and Porphyry

Along with Amphibolite and Porphyry definition, know more about the etymology of Amphibolite and Porphyry. Etymology of Amphibolite and Porphyry gives information about origin and formation of a particular rock. Know more about Formation of Amphibolite and Formation of Porphyry. The etymology of Amphibolite is From Amphibole + -ite while that of Porphyry is From Amphibole + -ite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Amphibolite belongs to Metamorphic Rocks while Porphyry belongs to Igneous Rocks. The sub-class, group and other categories of Amphibolite and Porphyry are listed below.

For Amphibolite,

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

For Porphyry,

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