Rhyolite and Chalk Definition

Definition of Rhyolite and Chalk

The general Rhyolite and Chalk definition can be stated as: Rhyolite is a fine-grained igneous rock which is rich in silica. On the other hand, Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. Along with definition of Rhyolite and Chalk, get to know about Properties of Rhyolite and Chalk. Get to know more information about Rhyolite and Chalk origin and discoverer, etymology and class.

History of Rhyolite and Chalk

The history of Rhyolite and Chalk 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 Chalk Origin and Discoverer

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

Etymology of Rhyolite and Chalk

Along with Rhyolite and Chalk definition, know more about the etymology of Rhyolite and Chalk. Etymology of Rhyolite and Chalk gives information about origin and formation of a particular rock. Know more about Formation of Rhyolite and Formation of Chalk. The etymology of Rhyolite is From German Rhyolit, from Greek rhuax lava stream + lithos stone while that of Chalk 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 belongs to Igneous Rocks while Chalk belongs to Sedimentary Rocks. The sub-class, group and other categories of Rhyolite and Chalk are listed below.

For Rhyolite,

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

For Chalk,

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