Shoshonite is one of the important type of rocks. If we have to define Shoshonite in general, 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. Shoshonite comes under Igneous Rocks. All Igneous Rocks have similar properties and formation process. Along with Shoshonite Definition, know more about the History of Shoshonite, Etymology of Shoshonite in next sections.