Andesite and Porphyry Definition

Definition of Andesite and Porphyry

The general Andesite and Porphyry definition can be stated as: Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. 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 Andesite and Porphyry, get to know about Properties of Andesite and Porphyry. Get to know more information about Andesite and Porphyry origin and discoverer, etymology and class.

History of Andesite and Porphyry

The history of Andesite 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.

Andesite and Porphyry Origin and Discoverer

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

Etymology of Andesite and Porphyry

Along with Andesite and Porphyry definition, know more about the etymology of Andesite and Porphyry. Etymology of Andesite and Porphyry gives information about origin and formation of a particular rock. Know more about Formation of Andesite and Formation of Porphyry. The etymology of Andesite is From Andes mountains, where it is found in abundance while that of Porphyry is From Andes mountains, where it is found in abundance. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Andesite and Porphyry belong to Igneous Rocks. The sub-class, group and other categories of Andesite and Porphyry are listed below.

For Andesite,

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