MYSTERY: RINGING ROCKS [USA] A. Introduction of Essay (with Thesis Statement) [5 Marks] Ringing rocks is known as one of the mystery places in the world. When the rocks are struck with a hammer or another rock, they sound as if they are metal and hollow, and ring with a sound similar to a metal pipe being struck. The rocks themselves are composed of diabase, the same type of rock that makes up most the earth's crust. The viewpoints of three researchers are being presented briefly in this assignment