Rhyolite and Andesite Definition

Definition of Rhyolite and Andesite

The general Rhyolite and Andesite definition can be stated as: Rhyolite is a fine-grained igneous rock which is rich in silica. On the other hand, Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. Along with definition of Rhyolite and Andesite, get to know about Properties of Rhyolite and Andesite. Get to know more information about Rhyolite and Andesite origin and discoverer, etymology and class.

History of Rhyolite and Andesite

The history of Rhyolite and Andesite 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.

Rhyolite and Andesite Origin and Discoverer

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

Etymology of Rhyolite and Andesite

Along with Rhyolite and Andesite definition, know more about the etymology of Rhyolite and Andesite. Etymology of Rhyolite and Andesite gives information about origin and formation of a particular rock. Know more about Formation of Rhyolite and Formation of Andesite. The etymology of Rhyolite is From German Rhyolit, from Greek rhuax lava stream + lithos stone while that of Andesite is From German Rhyolit, from Greek rhuax lava stream + lithos stone. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Rhyolite and Andesite belong to Igneous Rocks. The sub-class, group and other categories of Rhyolite and Andesite are listed below.

For Rhyolite,

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

For Andesite,

• Sub-class: Durable Rock and Hard Rock
• Group: Volcanic
• Other Categories: Fine grained rock and Opaque rock