Scoria and Porphyry Definition

Definition of Scoria and Porphyry

The general Scoria and Porphyry definition can be stated as: Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities. 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 Scoria and Porphyry, get to know about Properties of Scoria and Porphyry. Get to know more information about Scoria and Porphyry origin and discoverer, etymology and class.

History of Scoria and Porphyry

The history of Scoria 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.

Scoria and Porphyry Origin and Discoverer

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

Etymology of Scoria and Porphyry

Along with Scoria and Porphyry definition, know more about the etymology of Scoria and Porphyry. Etymology of Scoria and Porphyry gives information about origin and formation of a particular rock. Know more about Formation of Scoria and Formation of Porphyry. The etymology of Scoria is From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung while that of Porphyry is From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Scoria and Porphyry belong to Igneous Rocks. The sub-class, group and other categories of Scoria and Porphyry are listed below.

For Scoria,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• 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