ocr: DIAMONDS IN INDUSTRY IAMONDS are the hardest natural to cut quarry stone, in saws to cut D substances in the world. In glass, - and in drills to cut rock. They industry, they are widely used for are even used in the blades ofsurgical cutting and grinding other hard scalpels, because, as well as being materials. They are used in wires hard, theydo not corrode. Today, most industrial diamonds are Each atom bonds four others produced artificially. with Cutting Structure of a diamond edge In a diamond, each carbon atom is bonded to four others in a rigid, four-sided structure that is virtually unb ...