Greywacke and Amphibolite Definition

Definition of Greywacke and Amphibolite

The general Greywacke and Amphibolite 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, Amphibolite can be defined as a granular metamorphic rock which mainly consist of hornblende and plagioclase. Along with definition of Greywacke and Amphibolite, get to know about Properties of Greywacke and Amphibolite. Get to know more information about Greywacke and Amphibolite origin and discoverer, etymology and class.

History of Greywacke and Amphibolite

The history of Greywacke and Amphibolite 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 Amphibolite Origin and Discoverer

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

Etymology of Greywacke and Amphibolite

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

For Greywacke,

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

For Amphibolite,

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