Greywacke and Shonkinite Definition

Definition of Greywacke and Shonkinite

The general Greywacke and Shonkinite 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, Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents. Along with definition of Greywacke and Shonkinite, get to know about Properties of Greywacke and Shonkinite. Get to know more information about Greywacke and Shonkinite origin and discoverer, etymology and class.

History of Greywacke and Shonkinite

The history of Greywacke and Shonkinite 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 Shonkinite Origin and Discoverer

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

Etymology of Greywacke and Shonkinite

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

For Greywacke,

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

For Shonkinite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock