Trachyte and Coquina Definition

Definition of Trachyte and Coquina

The general Trachyte and Coquina definition can be stated as: Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar. 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 Trachyte and Coquina, get to know about Properties of Trachyte and Coquina. Get to know more information about Trachyte and Coquina origin and discoverer, etymology and class.

History of Trachyte and Coquina

The history of Trachyte 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.

Trachyte and Coquina Origin and Discoverer

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

Etymology of Trachyte and Coquina

Along with Trachyte and Coquina definition, know more about the etymology of Trachyte and Coquina. Etymology of Trachyte and Coquina gives information about origin and formation of a particular rock. Know more about Formation of Trachyte and Formation of Coquina. The etymology of Trachyte is From Greek trakhus rough’ or trakhutēs roughness while that of Coquina is From Greek trakhus rough’ or trakhutēs roughness. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Trachyte belongs to Igneous Rocks while Coquina belongs to Sedimentary Rocks. The sub-class, group and other categories of Trachyte and Coquina are listed below.

For Trachyte,

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

For Coquina,

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