A compound of silicon and carbon, it is found in nature as Moissanite, and as powder has been mass produced since 1893 as an abrasive. Silicon carbide is another name for it. Print makers such as Joan Miro used Carborundum to create relief on etching plates. Sources: Wikipedia: "Silicon carbide"; AskART biography of Joan Miro. <br><br>Another name for silicon carbide, this is a hard crystalline substance used as an abrasive and in refractory compounds.Also see corundum, emery, and rouge.