Boninite is one of the important type of rocks. If we have to define Boninite in general, Boninite is a mafic extrusive rock which is high in magnesium and silica content, formed in fore-arc environments, typically during the early stages of subduction. Boninite comes under Igneous Rocks. All Igneous Rocks have similar properties and formation process. Along with Boninite Definition, know more about the History of Boninite, Etymology of Boninite in next sections.