Green silicon carbide is a tough (Mohs 9.4 / 2600 Knoop) artificial mineral with high thermal conductivity and high strength at elevated temperatures (at 1000°C, SiC is 7.5 times stronger than Al2O3). Green silicon carbide has a modulus of elasticity of 410 GPa, with no decrease in strength up to 1600°C, and it does not melt at normal pressures but instead dissociates at 2600°C.