Greywacke and Phyllite Definition

Definition of Greywacke and Phyllite

The general Greywacke and Phyllite 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, Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks. Along with definition of Greywacke and Phyllite, get to know about Properties of Greywacke and Phyllite. Get to know more information about Greywacke and Phyllite origin and discoverer, etymology and class.

History of Greywacke and Phyllite

The history of Greywacke and Phyllite 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 Phyllite Origin and Discoverer

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

Etymology of Greywacke and Phyllite

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

For Greywacke,

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

For Phyllite,

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