Amphibolite and Greywacke Definition

Definition of Amphibolite and Greywacke

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

History of Amphibolite and Greywacke

The history of Amphibolite 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.

Amphibolite and Greywacke Origin and Discoverer

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

Etymology of Amphibolite and Greywacke

Along with Amphibolite and Greywacke definition, know more about the etymology of Amphibolite and Greywacke. Etymology of Amphibolite and Greywacke gives information about origin and formation of a particular rock. Know more about Formation of Amphibolite and Formation of Greywacke. The etymology of Amphibolite is From Amphibole + -ite while that of Greywacke is From Amphibole + -ite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Amphibolite belongs to Metamorphic Rocks while Greywacke belongs to Sedimentary Rocks. The sub-class, group and other categories of Amphibolite and Greywacke are listed below.

For Amphibolite,

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