Porphyry and Shoshonite Definition

Definition of Porphyry and Shoshonite

The general Porphyry and Shoshonite 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, Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass. Along with definition of Porphyry and Shoshonite, get to know about Properties of Porphyry and Shoshonite. Get to know more information about Porphyry and Shoshonite origin and discoverer, etymology and class.

History of Porphyry and Shoshonite

The history of Porphyry and Shoshonite 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 Shoshonite Origin and Discoverer

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

Etymology of Porphyry and Shoshonite

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

For Porphyry,

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

For Shoshonite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock