Greywacke and Charnockite Definition

Definition of Greywacke and Charnockite

The general Greywacke and Charnockite 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, Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar. Along with definition of Greywacke and Charnockite, get to know about Properties of Greywacke and Charnockite. Get to know more information about Greywacke and Charnockite origin and discoverer, etymology and class.

History of Greywacke and Charnockite

The history of Greywacke and Charnockite 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 Charnockite Origin and Discoverer

Greywacke and Charnockite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Greywacke and Charnockite. In this section, you will know about Greywacke and Charnockite Origin and Discoverer. Origin of Greywacke is Unknown whereas Origin of Charnockite is Tamil Nadu, India. It is interesting to know the name of Greywacke and Charnockite discoverer. The Discoverer of Greywacke is Unknown and the discoverer of Charnockite is T. H. Holland.

Etymology of Greywacke and Charnockite

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

For Greywacke,

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

For Charnockite,

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