Greywacke and Foidolite Definition

Definition of Greywacke and Foidolite

The general Greywacke and Foidolite 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, Foidolite is a rare type of coarse-grained intrusive igneous rock with a feldspathoid mineral content greater than 60%. Along with definition of Greywacke and Foidolite, get to know about Properties of Greywacke and Foidolite. Get to know more information about Greywacke and Foidolite origin and discoverer, etymology and class.

History of Greywacke and Foidolite

The history of Greywacke and Foidolite 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 Foidolite Origin and Discoverer

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

Etymology of Greywacke and Foidolite

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

For Greywacke,

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

For Foidolite,

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