Variolite and Coquina Definition

Definition of Variolite and Coquina

The general Variolite and Coquina definition can be stated as: Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance. On the other hand, Coquina is a sedimentary rock that is composed either wholly or almost entirely of the transported, abraded, and mechanically-sorted fragments of the shells of molluscs, trilobites, brachiopods, or other invertebrates. Along with definition of Variolite and Coquina, get to know about Properties of Variolite and Coquina. Get to know more information about Variolite and Coquina origin and discoverer, etymology and class.

History of Variolite and Coquina

The history of Variolite and Coquina 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.

Variolite and Coquina Origin and Discoverer

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

Etymology of Variolite and Coquina

Along with Variolite and Coquina definition, know more about the etymology of Variolite and Coquina. Etymology of Variolite and Coquina gives information about origin and formation of a particular rock. Know more about Formation of Variolite and Formation of Coquina. The etymology of Variolite is From Latin varius, speckled, variegated while that of Coquina is From Latin varius, speckled, variegated. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Variolite belongs to Igneous Rocks while Coquina belongs to Sedimentary Rocks. The sub-class, group and other categories of Variolite and Coquina are listed below.

For Variolite,

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

For Coquina,

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