Shale and Greywacke Definition

Definition of Shale and Greywacke

The general Shale and Greywacke definition can be stated as: Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles. 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 Shale and Greywacke, get to know about Properties of Shale and Greywacke. Get to know more information about Shale and Greywacke origin and discoverer, etymology and class.

History of Shale and Greywacke

The history of Shale 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.

Shale and Greywacke Origin and Discoverer

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

Etymology of Shale and Greywacke

Along with Shale and Greywacke definition, know more about the etymology of Shale and Greywacke. Etymology of Shale and Greywacke gives information about origin and formation of a particular rock. Know more about Formation of Shale and Formation of Greywacke. The etymology of Shale is From German Schalstein laminated limestone, and Schalgebirge layer of stone in stratified rock. From Old English scealu in its base sense of- thing that divides or separate, while that of Greywacke is From German Schalstein laminated limestone, and Schalgebirge layer of stone in stratified rock. From Old English scealu in its base sense of- thing that divides or separate,. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Shale and Greywacke belong to Sedimentary Rocks. The sub-class, group and other categories of Shale and Greywacke are listed below.

For Shale,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• Other Categories: Fine 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