Greywacke and Theralite Definition

Definition of Greywacke and Theralite

The general Greywacke and Theralite 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, Theralite is a plutonic hylocrystalline igneous rock consisting of augite, olivine, calcic plagioclase and nepheline. Along with definition of Greywacke and Theralite, get to know about Properties of Greywacke and Theralite. Get to know more information about Greywacke and Theralite origin and discoverer, etymology and class.

History of Greywacke and Theralite

The history of Greywacke and Theralite 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 Theralite Origin and Discoverer

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

Etymology of Greywacke and Theralite

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

For Greywacke,

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

For Theralite,

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