This book documents a substantial body of research work, both in the laboratory and in the field, on an important issue of pyritic shale reactions with industry explosives (ANFO) for safe mining operations in reactive ground containing pyritic minerals. The research outcomes have significant implications in the practice of the mining industry operating with reactive geological situations. The research methodology developed and employed provides a generic guidance to practitioners, academic researchers and postgraduates who will find it useful in linking fundamental science and practical problems, such as those detailed in this book.