diamond industrial 1999 23 1 d iamond i ndustrial by donald w olson domestic survey data and tables were prepared christine k pisut statistical assistant the world production table was regina r coleman international coordinator is best known for its gem qualities but some of unique properties make it ideal many research applications as well hardest material has highest thermal conductivity any at room temperature may 1995 more than twice hard cubic boron nitride or silicon which are nearest competitors ravi 1994 because substance been used centuries an abrasive in grinding drilling cutting polishing grade continues to be that does not meet quality standards color clarity size shape even though higher unit cost proven effective processes cuts faster lasts longer rival materials boucher 1997 also chemical electrical optical
