Definition of Coquina and Shoshonite
The general Coquina and Shoshonite definition can be stated as: 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. On the other hand, Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass. Along with definition of Coquina and Shoshonite, get to know about Properties of Coquina and Shoshonite. Get to know more information about Coquina and Shoshonite origin and discoverer, etymology and class.