1. Green and black are the color most commonly found in silicon carbide.

2. Its hardness is very high abou 9.5 mohs.

3. Black Silicon carbide is made of quartz sand, petroleum coke, saw dust which is smelting in the resistance furnance.

4. Synthetic Moissanite is similar to diamond , so it can be used to make jewelry. 

5. Adding salt in the process of producing silicon carbide can make green silicon carbide.