Porphyry and Pseudotachylite Definition

Definition of Porphyry and Pseudotachylite

The general Porphyry and Pseudotachylite 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, Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.. Along with definition of Porphyry and Pseudotachylite, get to know about Properties of Porphyry and Pseudotachylite. Get to know more information about Porphyry and Pseudotachylite origin and discoverer, etymology and class.

History of Porphyry and Pseudotachylite

The history of Porphyry and Pseudotachylite 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 Pseudotachylite Origin and Discoverer

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

Etymology of Porphyry and Pseudotachylite

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

For Porphyry,

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

For Pseudotachylite,

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