Greywacke and Siltstone Definition

Definition of Greywacke and Siltstone

The general Greywacke and Siltstone 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, Siltstone can be defined as a fine-grained sedimentary rock which mainly consists of consolidated silt. Along with definition of Greywacke and Siltstone, get to know about Properties of Greywacke and Siltstone. Get to know more information about Greywacke and Siltstone origin and discoverer, etymology and class.

History of Greywacke and Siltstone

The history of Greywacke and Siltstone 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 Siltstone Origin and Discoverer

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

Etymology of Greywacke and Siltstone

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

For Greywacke,

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

For Siltstone,

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