Greywacke and Hornblendite Definition

Definition of Greywacke and Hornblendite

The general Greywacke and Hornblendite 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, Hornblendite is a type of igneous plutonic rock consisting mainly of amphibole hornblende and is a type of Amphibolite rock. Along with definition of Greywacke and Hornblendite, get to know about Properties of Greywacke and Hornblendite. Get to know more information about Greywacke and Hornblendite origin and discoverer, etymology and class.

History of Greywacke and Hornblendite

The history of Greywacke and Hornblendite 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 Hornblendite Origin and Discoverer

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

Etymology of Greywacke and Hornblendite

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

For Greywacke,

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

For Hornblendite,

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