Can your knowledge of volcanic rocks make you rich? Yes!! That is, if you combine it with knowledge of mineral deposits and global economic factors. Volcanoes directly or indirectly produce or host deposits of aluminum, diamonds, gold, nickel, lead, zinc, and copper. We use most of these materials everyday and, over the course of a lifetime, consume some of them (via the products we buy and use) in great amounts. This page provides a basic overview of the mineral deposits hosted in volcanic rocks.
Right: Photo shows alluvial diamonds that were eroded from the Argyle pipe. Photo courtesy of Grant Boxer.