Greywacke and Syenite Definition

Definition of Greywacke and Syenite

The general Greywacke and Syenite 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, Syenite is a coarse-grained igneous rock which is composed mainly of alkali feldspar and various ferromagnesian minerals. Along with definition of Greywacke and Syenite, get to know about Properties of Greywacke and Syenite. Get to know more information about Greywacke and Syenite origin and discoverer, etymology and class.

History of Greywacke and Syenite

The history of Greywacke and Syenite 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 Syenite Origin and Discoverer

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

Etymology of Greywacke and Syenite

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

For Greywacke,

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

For Syenite,

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