Scoria and Greywacke Definition

Definition of Scoria and Greywacke

The general Scoria and Greywacke definition can be stated as: Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities. On the other hand, Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay. Along with definition of Scoria and Greywacke, get to know about Properties of Scoria and Greywacke. Get to know more information about Scoria and Greywacke origin and discoverer, etymology and class.

History of Scoria and Greywacke

The history of Scoria and Greywacke 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 Greywacke Origin and Discoverer

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

Etymology of Scoria and Greywacke

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

For Scoria,

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

For Greywacke,

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