Andesite and Greywacke Definition

Definition of Andesite and Greywacke

The general Andesite and Greywacke definition can be stated as: Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. 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 Andesite and Greywacke, get to know about Properties of Andesite and Greywacke. Get to know more information about Andesite and Greywacke origin and discoverer, etymology and class.

History of Andesite and Greywacke

The history of Andesite 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.

Andesite and Greywacke Origin and Discoverer

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

Etymology of Andesite and Greywacke

Along with Andesite and Greywacke definition, know more about the etymology of Andesite and Greywacke. Etymology of Andesite and Greywacke gives information about origin and formation of a particular rock. Know more about Formation of Andesite and Formation of Greywacke. The etymology of Andesite is From Andes mountains, where it is found in abundance while that of Greywacke is From Andes mountains, where it is found in abundance. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Andesite belongs to Igneous Rocks while Greywacke belongs to Sedimentary Rocks. The sub-class, group and other categories of Andesite and Greywacke are listed below.

For Andesite,

• Sub-class: Durable Rock and Hard Rock
• Group: Volcanic
• 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