Nepheline Syenite and Greywacke Definition

Definition of Nepheline Syenite and Greywacke

The general Nepheline Syenite and Greywacke definition can be stated as: Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz. 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 Nepheline Syenite and Greywacke, get to know about Properties of Nepheline Syenite and Greywacke. Get to know more information about Nepheline Syenite and Greywacke origin and discoverer, etymology and class.

History of Nepheline Syenite and Greywacke

The history of Nepheline Syenite 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.

Nepheline Syenite and Greywacke Origin and Discoverer

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

Etymology of Nepheline Syenite and Greywacke

Along with Nepheline Syenite and Greywacke definition, know more about the etymology of Nepheline Syenite and Greywacke. Etymology of Nepheline Syenite and Greywacke gives information about origin and formation of a particular rock. Know more about Formation of Nepheline Syenite and Formation of Greywacke. The etymology of Nepheline Syenite is From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China while that of Greywacke is From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Nepheline Syenite belongs to Igneous Rocks while Greywacke belongs to Sedimentary Rocks. The sub-class, group and other categories of Nepheline Syenite and Greywacke are listed below.

For Nepheline Syenite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Plutonic
• Other Categories: Fine 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