2. Moissanite (MOHS Hardness:9.5)
3. Corundum (MOHS Hardness:9)
4. topaz (MOHS Hardness:8)
5. beryl (MOHS Hardness:8)
6. kvarts (MOHS Hardness:7)
7. ortoklase feltspat (MOHS Hardness:6)
8. plagioclase feltspar (MOHS Hardness:6)
9. hornblende (MOHS Hardness:6)
10. Augite (MOHS Hardness:5.5-6)