Slate and Porphyry Definition

Definition of Slate and Porphyry

The general Slate and Porphyry definition can be stated as: Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. 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 Slate and Porphyry, get to know about Properties of Slate and Porphyry. Get to know more information about Slate and Porphyry origin and discoverer, etymology and class.

History of Slate and Porphyry

The history of Slate 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.

Slate and Porphyry Origin and Discoverer

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

Etymology of Slate and Porphyry

Along with Slate and Porphyry definition, know more about the etymology of Slate and Porphyry. Etymology of Slate and Porphyry gives information about origin and formation of a particular rock. Know more about Formation of Slate and Formation of Porphyry. The etymology of Slate is From Old French esclate, from esclat (French éclat) while that of Porphyry is From Old French esclate, from esclat (French éclat). The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Slate belongs to Metamorphic Rocks while Porphyry belongs to Igneous Rocks. The sub-class, group and other categories of Slate and Porphyry are listed below.

For Slate,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• 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