Schist and Porphyry Definition

Definition of Schist and Porphyry

The general Schist and Porphyry definition can be stated as: Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation. 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 Schist and Porphyry, get to know about Properties of Schist and Porphyry. Get to know more information about Schist and Porphyry origin and discoverer, etymology and class.

History of Schist and Porphyry

The history of Schist 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.

Schist and Porphyry Origin and Discoverer

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

Etymology of Schist and Porphyry

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

For Schist,

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