Schist and Greywacke Definition

Definition of Schist and Greywacke

The general Schist and Greywacke definition can be stated as: Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation. 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 Schist and Greywacke, get to know about Properties of Schist and Greywacke. Get to know more information about Schist and Greywacke origin and discoverer, etymology and class.

History of Schist and Greywacke

The history of Schist 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.

Schist and Greywacke Origin and Discoverer

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

Etymology of Schist and Greywacke

Along with Schist and Greywacke definition, know more about the etymology of Schist and Greywacke. Etymology of Schist and Greywacke gives information about origin and formation of a particular rock. Know more about Formation of Schist and Formation of Greywacke. The etymology of Schist is From French schiste, Greek skhistos i.e. split while that of Greywacke is From French schiste, Greek skhistos i.e. split. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Schist belongs to Metamorphic Rocks while Greywacke belongs to Sedimentary Rocks. The sub-class, group and other categories of Schist and Greywacke are listed below.

For Schist,

• 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

For Greywacke,

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