Porphyry and Rhyodacite Definition

Definition of Porphyry and Rhyodacite

The general Porphyry and Rhyodacite 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, Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite. Along with definition of Porphyry and Rhyodacite, get to know about Properties of Porphyry and Rhyodacite. Get to know more information about Porphyry and Rhyodacite origin and discoverer, etymology and class.

History of Porphyry and Rhyodacite

The history of Porphyry and Rhyodacite 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 Rhyodacite Origin and Discoverer

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

Etymology of Porphyry and Rhyodacite

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

For Porphyry,

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

For Rhyodacite,

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