Greywacke and Dunite Definition

Definition of Greywacke and Dunite

The general Greywacke and Dunite 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, Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine. Along with definition of Greywacke and Dunite, get to know about Properties of Greywacke and Dunite. Get to know more information about Greywacke and Dunite origin and discoverer, etymology and class.

History of Greywacke and Dunite

The history of Greywacke and Dunite 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 Dunite Origin and Discoverer

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

Etymology of Greywacke and Dunite

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

For Greywacke,

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

For Dunite,

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