Greywacke and Scoria Definition

Definition of Greywacke and Scoria

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

History of Greywacke and Scoria

The history of Greywacke and Scoria 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.

Greywacke and Scoria Origin and Discoverer

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

Etymology of Greywacke and Scoria

Along with Greywacke and Scoria definition, know more about the etymology of Greywacke and Scoria. Etymology of Greywacke and Scoria gives information about origin and formation of a particular rock. Know more about Formation of Greywacke and Formation of Scoria. The etymology of Greywacke is From German Grauwacke, from grau grey + wacke while that of Scoria is From German Grauwacke, from grau grey + wacke. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Greywacke belongs to Sedimentary Rocks while Scoria belongs to Igneous Rocks. The sub-class, group and other categories of Greywacke and Scoria are listed below.

For Greywacke,

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

For Scoria,

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