Greywacke and Pumice Definition

Definition of Greywacke and Pumice

The general Greywacke and Pumice 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, Pumice is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals. Along with definition of Greywacke and Pumice, get to know about Properties of Greywacke and Pumice. Get to know more information about Greywacke and Pumice origin and discoverer, etymology and class.

History of Greywacke and Pumice

The history of Greywacke and Pumice 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 Pumice Origin and Discoverer

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

Etymology of Greywacke and Pumice

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

For Greywacke,

• Sub-class: Durable Rock and Hard Rock
• Group:
• Other Categories: Fine grained rock and Opaque rock

For Pumice,

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