Green silicon carbide also named Green Carborundum is generated from quartz sand (SiO2), petroleum coke (C) and salt as additive in electric resistance type furnaces at high temperatures, and it is produced basically the same way as Black silicon carbide. Green silicon carbide has good hardness of Mohs hardness:9.2, which is higher than corundum and ranks below diamond and a high purity over 99% in SiC. Green silicon carbide is also characterized by strong cutting ability, stable chemical characteristics, high friability, excellent thermal conductivity, small thermal expansion coefficient and super performance of wear-resisting, Green silicon carbide can resist high temperature and corrosion & thermal shock. Physical index: Color Green Basic Mineral α-SiC True density 3.2g/cm3 Bulk density 1.45-1.56g/cm3 Mohs hardness 9.2 Microhardness HV3280-3400 Please do not hesitate to contact us for specific details for products