Scoria and Rapakivi Granite Definition

Definition of Scoria and Rapakivi Granite

The general Scoria and Rapakivi Granite definition can be stated as: Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities. On the other hand, Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase. Along with definition of Scoria and Rapakivi Granite, get to know about Properties of Scoria and Rapakivi Granite. Get to know more information about Scoria and Rapakivi Granite origin and discoverer, etymology and class.

History of Scoria and Rapakivi Granite

The history of Scoria and Rapakivi Granite 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 Rapakivi Granite Origin and Discoverer

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

Etymology of Scoria and Rapakivi Granite

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

For Scoria,

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

For Rapakivi Granite,

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